TREA

affording automatic call distribution

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  • CPC
  • H04M5/06
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M5/00Manual exchanges

Current Industry

H04M5/06affording automatic call distribution
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Interconnection evaluation system and method for switchboard
    • Patent number 9,864,010
    • Issue date Jan 9, 2018
    • LSIS Co., Ltd.
    • Woo Seok Lee
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2542742
    • Patent number 2,542,742
    • Issue date Feb 20, 1951
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2115133
    • Patent number 2,115,133
    • Issue date Apr 26, 1938
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2005590
    • Patent number 2,005,590
    • Issue date Jun 18, 1935
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1917879
    • Patent number 1,917,879
    • Issue date Jul 11, 1933
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1863292
    • Patent number 1,863,292
    • Issue date Jun 14, 1932
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1818064
    • Patent number 1,818,064
    • Issue date Aug 11, 1931
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1795813
    • Patent number 1,795,813
    • Issue date Mar 10, 1931
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1744918
    • Patent number 1,744,918
    • Issue date Jan 28, 1930
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1701575
    • Patent number 1,701,575
    • Issue date Feb 12, 1929
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1690211
    • Patent number 1,690,211
    • Issue date Nov 6, 1928
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1689347
    • Patent number 1,689,347
    • Issue date Oct 30, 1928
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1637403
    • Patent number 1,637,403
    • Issue date Aug 2, 1927
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1553311
    • Patent number 1,553,311
    • Issue date Sep 8, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1543886
    • Patent number 1,543,886
    • Issue date Jun 30, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1542849
    • Patent number 1,542,849
    • Issue date Jun 23, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1540043
    • Patent number 1,540,043
    • Issue date Jun 2, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1532217
    • Patent number 1,532,217
    • Issue date Apr 7, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1532216
    • Patent number 1,532,216
    • Issue date Apr 7, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1531360
    • Patent number 1,531,360
    • Issue date Mar 31, 1925
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1451896
    • Patent number 1,451,896
    • Issue date Apr 17, 1923
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1438732
    • Patent number 1,438,732
    • Issue date Dec 12, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1429972
    • Patent number 1,429,972
    • Issue date Sep 26, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1428761
    • Patent number 1,428,761
    • Issue date Sep 12, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1419569
    • Patent number 1,419,569
    • Issue date Jun 13, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1399998
    • Patent number 1,399,998
    • Issue date Dec 13, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1392179
    • Patent number 1,392,179
    • Issue date Sep 27, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1389596
    • Patent number 1,389,596
    • Issue date Sep 6, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1387181
    • Patent number 1,387,181
    • Issue date Aug 9, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1383743
    • Patent number 1,383,743
    • Issue date Jul 5, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE