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| (n.) A locking mechanism with multiple bolts which locks different openings simultaneously by a single action. |
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| (n.) A rim lock mechanism designed for use on an overhead door, which mechanism has a spring loaded bolt which automatically locks the door's bolt mechanism. |
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| (n.) A notch cut into the edge of a tumbler to accept a fence or sidebar. |
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| (n.) A feature, offered by some manufacturers, of distributing keyways and/or combinations for locks to ensure uniqueness in a geographic location. |
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| (abb.) Great Great Grand Master Key |
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| (abb.) Great Great Grand Master Keyed |
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| (abb.) Great Grand Master Key |
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| (abb.) Great Grand Master Key |
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| (abb.) Great Grand Master Keyed |
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| (n.) A device employing a frangible plate intended to permanently incapacitate a security container's normal opening mechanism if activated by physical attack on the container. |
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| (abb.) Grand Master Key |
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| (abb.) Grand Master Key |
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| (n.) A computer based code reference which determines all combinations in a code series that match a given partial combination. |
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| (abb.) Grand Master Keyed |
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| (n.) A set of top pins of different lengths. Usage is based on the height of the rest of the pin stack, in order to achieve a uniform pin stack height. |
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| (n.) The key which operates two or more separate groups of locks, which are each operated by a different master key. |
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| (n.) A master key system which has exactly three levels of keying. |
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| (adj.) Of or pertaining to a lock or cylinder which is or is to be keyed into a grand master key system. |
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| (n.) A usually flexible container designed to dispense a powdered lubricant. |
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| (n.) A hinge with complimentary sloped or V shaped knuckles on each leaf that cause gravity to turn the door back to the closed position. |
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| (n.) The key which operates two or more separate groups of locks which are each operated by a different grand master key. |
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| (n.) A master key system which has exactly four levels of keying. |
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| (adj.) Of or pertaining to a lock or cylinder which is or is to be keyed into a great grand master key system. |
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| (n.) The key which operates two or more separate groups of locks which are each operated by different great grand master keys. |
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| (n.) A master key system which has five or more levels of keying. |
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| (adj.) Of or pertaining to a lock or cylinder which is or is to be keyed into a great great grand master key system. |
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| (n.) The knob, lever, thumbpiece, push-pull operator, etc. of any working trim. |
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| (n.) A UL rating given to a mechanical combination lock able to withstand 20 man-hours of expert manipulation as well as other specifications listed in UL 768. |
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| (n.) A UL rating given to a mechanical combination lock equal to a group 1 lock which has the added feature of being X-Ray resistant, and which meets other requirements listed in UL publication 768. |
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| (n.) A UL rating given to a mechanical combination lock able to withstand reasonable expert manipulation as well as other specifications listed in UL 768. |
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| (n.) A UL rating given to a mechanical combination lock able to withstand 2 man-hours of expert manipulation as well as other specifications listed in UL 768. |
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| (abb.) General Services Administration (US Government) |
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| (n.) A GSA approved container meeting Federal Specification AA-F-357(canceled) with entry protection consisting of 10 Man-Minutes forced entry, 30 Man-Minutes surreptitious entry and 1 hour fire rating. |
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| (n.) A GSA approved container meeting Federal Specification AA-F-357(canceled) with entry protection consisting of 5 Man-Minutes forced entry, 20 Man-Minutes surreptitious entry and 1 hour fire rating. |
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| (n.) A GSA approved uninsulated container meeting Federal Specification AA-F-358 with entry protection consisting of 20 Man-Minutes surreptitious entry. |
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| (n.) A GSA approved uninsulated container meeting Federal Specification AA-F-358 with entry protection consisting of 5 Man-Minutes forced entry, 20 Man-Minutes surreptitious entry. |
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| (n.) A GSA approved uninsulated container meeting Federal Specification AA-F-358 with entry protection consisting of 10 Man-Minutes forced entry, 20 Man-Hours surreptitious entry and 30 Man-Minutes Covert entry. |
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| (n.) A GSA approved uninsulated container meeting Federal Specification AA-F-358 with entry protection consisting of 20 Man-Hours surreptitious entry and 30 Man-Minutes covert entry. |
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| (n.) A GSA approved uninsulated container meeting Federal Specification AA-F-2815(canceled) with entry protection consisting of 20 Man-Hours surreptitious entry and 15 Man-Minutes covert entry. |
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| (n.) Any container approved by the General Services Administration for storage of classified material. |
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| (n.) A GSA vault or map and plan container used to store weapons and requiring a minimum protection of a Group 1 lock. |
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| (n.) A spring loaded bolt which, when activated, will deadlock a latch bolt. |
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| (n.) A spacer used in place of a lever in the guard lever pack of a safe deposit lock. |
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| (n.) A key which must be used in conjunction with a renter's key to unlock a safe deposit lock. it is usually the same for every lock within an installation. |
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| (n.) Any lever tumbler, in a safe deposit lock, intended to be operated by the guard key. |
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(n.) 1. The circular member in a safe deposit lock upon which the guard levers are mounted.
(sic) 2. The trunnion for the guard key in a safe deposit lock. |
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| (n.) Any tumbler installed in a safe deposit lock for the guard key to activate. |
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| (n.) A key in a hotel master key system which is normally used to unlock only the one guest room for which it was intended, but will not operate the lock in the shut out mode. |
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(n.) 1. That part of a key machine which follows the cuts of a pattern key or template during duplication.
(n.) 2. That part of a flat key lever lock which connects the nose to the foot and supports the key blade. |
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