968 / | HD | HOROLOGY |
446 | DD | ELECTROMECHANICAL CLOCKS OR WATCHES INDEPENDENT OF OTHER TIMEPIECES AND IN WHICH THE MOVEMENT IS MAINTAINED BY ELECTRIC MEANS (synchronization subclass 506) [G04C 3/00] {8} |
447 | DD | .~ Electromechanical switches for setting or display [G04C 3/00K] {4} |
451 | .~.~ Electromechanical contact-making and breaking devices acting as pulse generators for setting [G04C 3/00K5] |