| 327 / | HD | MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS |
| 100 | DF | SIGNAL CONVERTING, SHAPING, OR GENERATING {29} |
| 291 | DF | .~ Clock or pulse waveform generating {11} |
| 293 | ![]() | .~.~ With plural paths in network {1} |
| 294 | DF | .~.~.~> With common output |