US PATENT SUBCLASS 968 / 740
.~.~ Shaping without chipping away, e.g., by hot pressing or by punching out the whole piece from a plate, etc. [G04D 3/06B]


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968 /   HD   HOROLOGY

685  DD  WATCHMAKER'S OR WATCH-REPAIRER'S MACHINES OR TOOLS FOR WORKING MATERIALS (metal working in general Class B23) [G04D 3/00] {7}
739  DD  .~ Devices for shaping or setting watch glasses (cutting watch glasses C03B 33/04; grinding and working of spectacle lenses and lenses B24B; working plastic materials in general B29B) [G04D 3/06] {3}
740.~.~ Shaping without chipping away, e.g., by hot pressing or by punching out the whole piece from a plate, etc. [G04D 3/06B]