US Patent Class 327
MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1  DF  SPECIFIC SIGNAL DISCRIMINATING (E.G., COMPARING, SELECTING, ETC.) WITHOUT SUBSEQUENT CONTROL {11}
100  DF  SIGNAL CONVERTING, SHAPING, OR GENERATING {29}
334  DF  SPECIFIC INPUT TO OUTPUT FUNCTION {9}
365  DF  GATING (I.E., SWITCHING INPUT TO OUTPUT) {12}
509  DF  EXTERNAL EFFECT {5}
518  DF  WITH PARTICULAR CONTROL {3}
524  DF  SPECIFIC IDENTIFIABLE DEVICE, CIRCUIT, OR SYSTEM {22}
603  DF  MISCELLANEOUS