TREA

Antonio J. Sainz

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  • Caracas, VE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable characteristic filters
    • Patent number 4,540,946
    • Issue date Sep 10, 1985
    • National Research Development Corp.
    • Antonio J. Sainz
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Apparatus for transmitting and receiving sound
    • Patent number 4,434,669
    • Issue date Mar 6, 1984
    • National Research Development Corporation
    • Victor C. Roberts
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE