US PATENT SUBCLASS 968 / 9
.~.~ With several mainsprings (installations with a mainspring and an auxiliary spring subclass 19; winding up several mainsprings simultaneously subclass 28) [G04B 1/12]


Current as of: June, 1999
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968 /   HD   HOROLOGY

2  DD  DRIVING MECHANISMS (driving mechanisms for Turkish time subclass 167; driving mechanisms in the hands subclass 396; driving mechanisms for phonographic apparatus G11B 19/00; springs, driving weight engines F03G; driving mechanisms for cinematography G03B 1/00; driving mechanisms; driving mechanisms for time fuses for missiles F42C; driving mechanisms for toys A63H 11/23) [G04B 1/00] {4}
7  DD  .~ With mainspring (synchronous motors with power reserve subclass 559; springs in general F16F) [G04B 1/10] {6}
9.~.~ With several mainsprings (installations with a mainspring and an auxiliary spring subclass 19; winding up several mainsprings simultaneously subclass 28) [G04B 1/12]