US PATENT SUBCLASS 968 / 497
.~ Magnetic or electromagnetic means [G04C 5/00B]
Current as of:
June, 1999
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968 /
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HOROLOGY
496
DD
ELECTRIC OR MAGNETIC MEANS FOR CONVERTING OSCILLATORY TO ROTARY MOTION IN TIMEPIECES, I.E., ELECTRIC OR MAGNETIC ESCAPEMENTS (regulators subclass 446) [G04C 5/00]
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497
.~ Magnetic or electromagnetic means [G04C 5/00B]
