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} |
714 | DD | .~ For treatment of the material, e.g., surface treatment, etc. [G04D 3/00D] {7} |
723 | .~.~ For components of the means protecting the mechanism against external influences, e.g., cases, etc. [G04D 3/00D20] |