US PATENT SUBCLASS 968 / 79
.~ Ratchet construction for driving rotating members in one direction, e.g., a ratchet on an oscillating member driving a ratchet wheel, etc. [G04B 11/00C]

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968 /   HD   HOROLOGY

73  DD  CLICK DEVICES; STOP CLICKS; CLUTCHES (mechanisms for winding up by hand subclass 23; automatic winding up subclass 40;) [G04B 11/00] {4}
79.~ Ratchet construction for driving rotating members in one direction, e.g., a ratchet on an oscillating member driving a ratchet wheel, etc. [G04B 11/00C]