US PATENT SUBCLASS 968 / 50
.~.~.~ Acting in both directions [G04B 5/14]


Current as of: June, 1999
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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}
44  DD  .~ By self-winding caused by the movement of the watch (bearings, suspensions for oscillating weights subclass 53; mechanisms for transformation of an oscillating movement into a rotating movement in only one direction subclass 73) [G04B 5/02] {4}
48  DD  .~.~ By oscillating weights the movement of which is not limited [G04B 5/10] {2}
50.~.~.~ Acting in both directions [G04B 5/14]