TREA

using magnetic tape

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Industry

  • CPC
  • H04M1/647
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/647using magnetic tape
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Automated audio output device for a telephone set
    • Patent number 5,481,599
    • Issue date Jan 2, 1996
    • Donald I. MacAllister
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Storage apparatus which controls the usage of a storage medium
    • Patent number 5,280,517
    • Issue date Jan 18, 1994
    • Canon Kabushiki Kaisha
    • Koichi Matsumoto
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Multiline telephone answering system and interface therefore
    • Patent number 5,115,464
    • Issue date May 19, 1992
    • Michael I. Waldman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Automatic telephone answering device with multiple outgoing message...
    • Patent number 4,881,260
    • Issue date Nov 14, 1989
    • Inventa electronics Co., Ltd.
    • Sayling Wen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Multiline telephone answering system and interface therefor
    • Patent number 4,860,338
    • Issue date Aug 22, 1989
    • Michael I. Waldman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Display for modular dictation/transcription system
    • Patent number 4,858,213
    • Issue date Aug 15, 1989
    • Dictaphone Corporation
    • John J. Dwyer
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Combined tape recording and playback apparatus and telephone answer...
    • Patent number 4,335,278
    • Issue date Jun 15, 1982
    • Elite Electrical Products Limited
    • Tseng Chee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Automatic telephone monitoring system
    • Patent number 3,967,068
    • Issue date Jun 29, 1976
    • Matsushita Electric Industrial Co., Ltd.
    • Isao Shinohara
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3800092
    • Patent number 3,800,092
    • Issue date Mar 26, 1974
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3597545
    • Patent number 3,597,545
    • Issue date Aug 3, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3557313
    • Patent number 3,557,313
    • Issue date Jan 19, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3553375
    • Patent number 3,553,375
    • Issue date Jan 5, 1971
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3230312
    • Patent number 3,230,312
    • Issue date Jan 18, 1966
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2927964
    • Patent number 2,927,964
    • Issue date Mar 8, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2927160
    • Patent number 2,927,160
    • Issue date Mar 1, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2925279
    • Patent number 2,925,279
    • Issue date Feb 16, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2553410
    • Patent number 2,553,410
    • Issue date May 15, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2380799
    • Patent number 2,380,799
    • Issue date Jul 31, 1945
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    1828733
    • Patent number 1,828,733
    • Issue date Oct 27, 1931
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1606560
    • Patent number 1,606,560
    • Issue date Nov 9, 1926
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1573258
    • Patent number 1,573,258
    • Issue date Feb 16, 1926
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents