US PATENT SUBCLASS 968 / 563
.~ Lubricating [G04C 15/00T]
Current as of:
June, 1999
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968 /
HD
HOROLOGY
553
DD
CLOCKS DRIVEN BY SYNCHRONOUS MOTORS [G04C 15/00]
{4}
563
.~ Lubricating [G04C 15/00T]
