| 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} |
| 295 | DF | .~.~ Plural outputs {2} |
| 296 | ![]() | .~.~.~ Plural clock outputs with multiple inputs |