TREA

comprising two or more styli or transducers

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Industry

  • CPC
  • H04R17/06
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Parent Industries

HELECTRICITY H04Electric communication H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS DEAF-AID SETS PUBLIC ADDRESS SYSTEMS H04R17/00Piezo-electric transducers Electrostrictive transducers

Current Industry

H04R17/06comprising two or more styli or transducers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3438637
    • Patent number 3,438,637
    • Issue date Apr 15, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3424466
    • Patent number 3,424,466
    • Issue date Jan 28, 1969
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3377439
    • Patent number 3,377,439
    • Issue date Apr 9, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3373996
    • Patent number 3,373,996
    • Issue date Mar 19, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3324252
    • Patent number 3,324,252
    • Issue date Jun 6, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3309469
    • Patent number 3,309,469
    • Issue date Mar 14, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3176085
    • Patent number 3,176,085
    • Issue date Mar 30, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3108161
    • Patent number 3,108,161
    • Issue date Oct 22, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3105691
    • Patent number 3,105,691
    • Issue date Oct 1, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3087027
    • Patent number 3,087,027
    • Issue date Apr 23, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3051495
    • Patent number 3,051,495
    • Issue date Aug 28, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3028162
    • Patent number 3,028,162
    • Issue date Apr 3, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3022384
    • Patent number 3,022,384
    • Issue date Feb 20, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2997548
    • Patent number 2,997,548
    • Issue date Aug 22, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2964595
    • Patent number 2,964,595
    • Issue date Dec 13, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2955170
    • Patent number 2,955,170
    • Issue date Oct 4, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2942890
    • Patent number 2,942,890
    • Issue date Jun 28, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2939716
    • Patent number 2,939,716
    • Issue date Jun 7, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2938966
    • Patent number 2,938,966
    • Issue date May 31, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2937242
    • Patent number 2,937,242
    • Issue date May 17, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2934610
    • Patent number 2,934,610
    • Issue date Apr 26, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2921145
    • Patent number 2,921,145
    • Issue date Jan 12, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2918538
    • Patent number 2,918,538
    • Issue date Dec 22, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2900452
    • Patent number 2,900,452
    • Issue date Aug 18, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2881005
    • Patent number 2,881,005
    • Issue date Apr 7, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2868893
    • Patent number 2,868,893
    • Issue date Jan 13, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2862068
    • Patent number 2,862,068
    • Issue date Nov 25, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2852619
    • Patent number 2,852,619
    • Issue date Sep 16, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2851541
    • Patent number 2,851,541
    • Issue date Sep 9, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2848558
    • Patent number 2,848,558
    • Issue date Aug 19, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE