US PATENT SUBCLASS 968 / 64
.~.~ By rotating axles, e.g., tachometers (direct drive of the clockwork, e.g., without winding up of a spring or the like by a rotating axle, etc. subclass 68; combination with measuring instruments in general subclass 411) [G04B 5/20F]


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968 /   HD   HOROLOGY

40  DD  AUTOMATIC WINDING UP (normal winding up by hand or mechanically subclass 23; automatic winding in combination with hand winding subclass 68; electrical winding of mechanical clockworks subclass 443; advertising by making use of vibrations or shocks of land vehicles G09F 21/04) [G04B 5/00] {7}
62  DD  .~ By movement of other objects, e.g., by opening a handbag, by opening a case, by opening a door, etc; winding up by wind power [G04B 5/20] {2}
64.~.~ By rotating axles, e.g., tachometers (direct drive of the clockwork, e.g., without winding up of a spring or the like by a rotating axle, etc. subclass 68; combination with measuring instruments in general subclass 411) [G04B 5/20F]