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} |
712 | DD | .~ For working with nonmechanical means, e.g., chemical, electrochemical, metallizing, vaporizing, etc; with electron beams, laser beams [G04D 3/00C] {1} |
713 | .~.~ For bearing components [G04D 3/00C1] |