Parallel heating or cooling tubes or tubular sections

Patents Grantslast 30 patents

  • Information Patent Grant

    3797568

    • Patent number 3,797,568
    • Issue date Mar 19, 1974
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1931247

    • Patent number 1,931,247
    • Issue date Oct 17, 1933
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1810712

    • Patent number 1,810,712
    • Issue date Jun 16, 1931
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1808605

    • Patent number 1,808,605
    • Issue date Jun 2, 1931
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1796658

    • Patent number 1,796,658
    • Issue date Mar 17, 1931
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    1771812

    • Patent number 1,771,812
    • Issue date Jul 29, 1930
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1764187

    • Patent number 1,764,187
    • Issue date Jun 17, 1930
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1634812

    • Patent number 1,634,812
    • Issue date Jul 5, 1927
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1608204

    • Patent number 1,608,204
    • Issue date Nov 23, 1926
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1537016

    • Patent number 1,537,016
    • Issue date May 5, 1925
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1187501

    • Patent number 1,187,501
    • Issue date Jun 20, 1916
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    996733

    • Patent number 996,733
    • Issue date Jul 4, 1911
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    941756

    • Patent number 941,756
    • Issue date Nov 30, 1909
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    763591

    • Patent number 763,591
    • Issue date Jun 28, 1904
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    475795

    • Patent number 475,795
    • Issue date May 31, 1892
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    224055

    • Patent number 224,055
    • Issue date Feb 3, 1880
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    171865

    • Patent number 171,865
    • Issue date Jan 4, 1876
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    145961

    • Patent number 145,961
    • Issue date Dec 30, 1873
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    119609

    • Patent number 119,609
    • Issue date Oct 3, 1871
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    95551

    • Patent number 95,551
    • Issue date Oct 5, 1869
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    85554

    • Patent number 85,554
    • Issue date Jan 5, 1869
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    67779

    • Patent number 67,779
    • Issue date Aug 13, 1867
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    65345

    • Patent number 65,345
    • Issue date Jun 4, 1867
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    53770

    • Patent number 53,770
    • Issue date Apr 10, 1866
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    38210

    • Patent number 38,210
    • Issue date Apr 21, 1863
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    4918

    • Patent number 4,918
    • Issue date Jan 1, 1847
    • B60 - VEHICLES IN GENERAL