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 |