including plural impellers

Patents Grantslast 30 patents

  • Information Patent Grant

    Tandem fan for motor-vehicle radiators

    • Patent number 5,826,549
    • Issue date Oct 27, 1998
    • Behr GmbH & Co.
    • Hans Martin
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Cooling apparatus for a gas transmission system

    • Patent number 4,681,156
    • Issue date Jul 21, 1987
    • Paul A. Leonard
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3378065

    • Patent number 3,378,065
    • Issue date Apr 16, 1968
    • F26 - DRYING
  • Information Patent Grant

    2259550

    • Patent number 2,259,550
    • Issue date Oct 21, 1941
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1953118

    • Patent number 1,953,118
    • Issue date Apr 3, 1934
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1889895

    • Patent number 1,889,895
    • Issue date Dec 6, 1932
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1819608

    • Patent number 1,819,608
    • Issue date Aug 18, 1931
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1791314

    • Patent number 1,791,314
    • Issue date Feb 3, 1931
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents