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Sargent & Greenleaf, Inc., more commonly known among Safe and Vault technician circles as S&G, is a U.S. company that manufactures combination locks, key-operated safe and safe deposit box locks, high security military padlocks, and associated equipment.
The combinations for some electronic locks can be retrieved by examining electromagnetic emissions coming from the lock. Because of this, many safe locks used to protect critical infrastructure are tested and certified to resist TEMPEST attacks. These include the Kaba Mas X-10 and S&G 2740B, which are FF-L-2740B compliant.
Type of lock (e.g., combination, key, time lock, electronic locking) Location (e.g., wall safe, floor safe) Smart safes as part of an automated cash handling system; It is often possible to open a safe without access to the key or knowledge of the combination; this activity is known as safe-cracking and is a popular theme in heist films.
The Hall's Safe & Lock Company was an American [1] manufacturer of locks, safes, and bank vaults throughout the second half of the 19th century. Incorporated by Joseph L. Hall in 1867, the Hall's Safe & Lock Co. of Cincinnati, Ohio quickly grew to become the largest [ 2 ] safe and vault manufacturer in the world.
A Knox vault in an academic building A Knox KeySecure, attached inside the cab of a fire engine, holds a high-security key [broken anchor] to open KnoxBox key boxes in the area. A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency ...
Many combination locks have three wheels, but the lock may be equipped with additional wheels, each with a drive pin and fly, in a similar manner. The number of wheels in the mechanism determines the number of specific dial positions that must be entered to open the lock, so a three-sequence combination is required for a three-wheel lock.
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