| 摘要 |
A combination lock includes a plurality of ratchet wheels which are moved to a lock-open position by the operation of a removeably mounted finger dial, which is similar to a telephone dial. Operation of the finger dial moves a pawl which travels in a row of circular tracks, each in alignment with a ratchet wheel, with the pawl moving in succession from track to track to rotate individual ratchet wheels as successive numbers are dialed.
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