| 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} |
| 443 | | .~ Protection against overwinding (in mechanical clocks or watches subclasses 16, 36, 38, 66, and 71) [G04C 1/10] {2} |
| 444 | DD | .~.~> Of the spring [G04C 1/12] |
| 445 | DD | .~.~> Of the weights [G04C 1/14] |