| 968 / | HD | HOROLOGY |
|
| 284 |  | CALIBERS (disposition of components of the automatic winding mechanism in relation to the clockwork subclass 53) [G04B 33/00] {8} |
| 285 | DD | .~> Circular calibers [G04B 33/02] |
| 286 | DD | .~> Noncircular calibers [G04B 33/04] |
| 287 | DD | .~> Of extremely flat shape [G04B 33/06] |
| 288 | DD | .~> In which the gear train is arranged in different planes, e.g., parallel or inclined to each other, etc. (subclass 289 takes precedence) (cases for special purposes, e.g., button or ring clockwork, etc. subclass 342) [G04B 33/08] |
| 289 | DD | .~> With second hand arranged in the center of the dial [G04B 33/10] |
| 290 | DD | .~> For extremely long running times [G04B 33/12] |
| 291 | DD | .~> Calibers of which the mainsprings or barrels are easily removable (main- springs subclass 10; barrels, arbors subclass 12; normal or mechanical winding subclass 23) [G04B 33/14] |
| 292 | DD | .~> With arrangements affording protection of the clockwork against damage as a consequence of a rupture of the mainspring (protection devices against the rupture of the mainspring or its over-tension, placed in the spring-drum or fixed on it against rupture if the mainspring is wound too far subclass 16) [G04B 33/16] |