| 368 / | HD | HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES |
| 46 | ![]() | PLURAL TIMEPIECE SYSTEM OR SYSTEM DEVICE (E.G., PRIMARY OR SECONDARY CLOCKS) {5} |
| 47 | DF | .~> With wireless synchronization |
| 48 | DF | .~> With auxiliary power source |
| 49 | DF | .~> With significant winding or setting means {2} |
| 52 | DF | .~> Primary with direct synchronization or drive {6} |
| 59 | DF | .~> Secondary {1} |