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Clutches Spring assemblies Speed regulators

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  • CPC
  • H04M1/315
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M1/00Substation equipment

Current Industry

H04M1/315Clutches Spring assemblies Speed regulators
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid-sealed type of a governor for telephone dial
    • Patent number 4,322,582
    • Issue date Mar 30, 1982
    • Kyung Hwan Cheong
    • Ki W. Song
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3659057
    • Patent number 3,659,057
    • Issue date Apr 25, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3545073
    • Patent number 3,545,073
    • Issue date Dec 8, 1970
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3305643
    • Patent number 3,305,643
    • Issue date Feb 21, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3149702
    • Patent number 3,149,702
    • Issue date Sep 22, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3080020
    • Patent number 3,080,020
    • Issue date Mar 5, 1963
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3020983
    • Patent number 3,020,983
    • Issue date Feb 13, 1962
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2949980
    • Patent number 2,949,980
    • Issue date Aug 23, 1960
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2847095
    • Patent number 2,847,095
    • Issue date Aug 12, 1958
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2779444
    • Patent number 2,779,444
    • Issue date Jan 29, 1957
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2716160
    • Patent number 2,716,160
    • Issue date Aug 23, 1955
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2685946
    • Patent number 2,685,946
    • Issue date Aug 10, 1954
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2550817
    • Patent number 2,550,817
    • Issue date May 1, 1951
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2499533
    • Patent number 2,499,533
    • Issue date Mar 7, 1950
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2345471
    • Patent number 2,345,471
    • Issue date Mar 28, 1944
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2339919
    • Patent number 2,339,919
    • Issue date Jan 25, 1944
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2272168
    • Patent number 2,272,168
    • Issue date Feb 10, 1942
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1462087
    • Patent number 1,462,087
    • Issue date Jul 17, 1923
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1460907
    • Patent number 1,460,907
    • Issue date Jul 3, 1923
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1459394
    • Patent number 1,459,394
    • Issue date Jun 19, 1923
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    1453452
    • Patent number 1,453,452
    • Issue date May 1, 1923
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1452266
    • Patent number 1,452,266
    • Issue date Apr 17, 1923
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1431379
    • Patent number 1,431,379
    • Issue date Oct 10, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1431377
    • Patent number 1,431,377
    • Issue date Oct 10, 1922
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    1371248
    • Patent number 1,371,248
    • Issue date Mar 15, 1921
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE