US PATENT SUBCLASS 968 / 583
.~.~ By striking mechanism [G04C 21/06]


Current as of: June, 1999
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968 /   HD   HOROLOGY

580  DD  PRODUCING ACOUSTIC TIME SIGNALS BY ELECTRICAL MEANS (for mechanical clocks or watches subclasses 225 and 243) [G04C 21/00] {3}
582  DD  .~ Indicating the time of the day (acoustic indication of time subclass 217) [G04C 21/04] {2}
583.~.~ By striking mechanism [G04C 21/06] {2}
584  DD  .~.~.~> With snail [G04C 21/08]
585  DD  .~.~.~> With locking plate [G04C 21/10]