| 摘要 |
A key-operated combination lock having a locking latch operated by a pivotable handle. Movably secured to the handle is a slidable bolt control element which constitutes the main closing element. The bolt control element is locked by the penetration of a number of bolt pins through the bolt control element and into perforations which house drive pins of varied sizes in a fixed base. The bolt control element may only be moved after the insertion of a key having a plurality of grooves which coincide with the drive pins into the keyway between the clasp and the fixed frame.
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