US PATENT SUBCLASS 968 / 42
.~ By relative movement between watchbands, case, or parts of the case [G04B 5/00C]


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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}
42.~ By relative movement between watchbands, case, or parts of the case [G04B 5/00C]