US PATENT SUBCLASS 968 / 428
.~ For clock systems (subclasses 429-434 take precedence) [G04C 1/00F]


Current as of: June, 1999
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968 /   HD   HOROLOGY

426  DD  WINDING MECHANICAL CLOCKS ELECTRICALLY (winding mechanically subclass 23; electrical winding of spring-driven arrangements for gramophones G11B 19/20) [G04C 1/00] {5}
428.~ For clock systems (subclasses 429-434 take precedence) [G04C 1/00F]