| 968 / | HD | HOROLOGY |
| 271 | DD | BEARINGS; POINT SUSPENSIONS, OR COUNTER-POINT SUSPENSIONS; PIVOT BEARINGS; SINGLE PARTS THEREFOR (bearings in general F16C; manufacture and composition of springs subclass 11; suspension of oscillating weights subclass 54; suspension of a pendulum subclass 105; devices for fixation of bearing jewels, bearings, sleeves, etc., subclass 735; bearings for electrical measurement apparatus G01R 1/10, 1/12, 11/12, 11/14; inserting jewels A44C 17/04; inserting cutting diamonds B23P 5/00) [G04B 31/00] {6} |
| 272 | DD | .~ Jeweled bearings [G04B 31/00B] {3} |
| 273 | | .~.~ With jewel hole and jewel cap (shock damping bearings with jewel hole and jewel cap subclass 283) [G04B 31/00B2] |