968 / | HD | HOROLOGY |
426 | DD | WINDING MECHANICAL CLOCKS ELECTRICALLY (winding mechanically subclass 23; electrical winding of spring-driven arrangements for gramophones G11B 19/20) [G04C 1/00] {5} |
428 | .~ For clock systems (subclasses 429-434 take precedence) [G04C 1/00F] |