using acoustic means

Industry

  • CPC
  • H03K17/7225
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Patents Grantslast 30 patents

  • Information Patent Grant

    Static power switch apparatus

    • Patent number 4,717,841
    • Issue date Jan 5, 1988
    • La Telemecanique Electrique
    • Bernard Dumortier
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    3872326

    • Patent number 3,872,326
    • Issue date Mar 18, 1975
    • H03 - BASIC ELECTRONIC CIRCUITRY