Hollow cylindrical member

Patents Grantslast 30 patents

  • Information Patent Grant

    Laminated corrugating roll

    • Patent number 6,006,806
    • Issue date Dec 28, 1999
    • Marquip, Inc.
    • Carl R. Marschke
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
  • Information Patent Grant

    Heat exchanger fluid removal system

    • Patent number 5,165,471
    • Issue date Nov 24, 1992
    • American Screw Press, Inc.
    • Schoichi Atsumi
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Rotating heat exchanger

    • Patent number 4,640,345
    • Issue date Feb 3, 1987
    • Jinichi Nishimura
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3818982

    • Patent number 3,818,982
    • Issue date Jun 25, 1974
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    3802494

    • Patent number 3,802,494
    • Issue date Apr 9, 1974
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3794118

    • Patent number 3,794,118
    • Issue date Feb 26, 1974
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3783936

    • Patent number 3,783,936
    • Issue date Jan 8, 1974
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3633662

    • Patent number 3,633,662
    • Issue date Jan 11, 1972
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3587728

    • Patent number 3,587,728
    • Issue date Jun 28, 1971
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    3548928

    • Patent number 3,548,928
    • Issue date Dec 22, 1970
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3331434

    • Patent number 3,331,434
    • Issue date Jul 18, 1967
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3302698

    • Patent number 3,302,698
    • Issue date Feb 7, 1967
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3291204

    • Patent number 3,291,204
    • Issue date Dec 13, 1966
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    3022046

    • Patent number 3,022,046
    • Issue date Feb 20, 1962
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2879039

    • Patent number 2,879,039
    • Issue date Mar 24, 1959
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2824721

    • Patent number 2,824,721
    • Issue date Feb 25, 1958
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    2668510

    • Patent number 2,668,510
    • Issue date Feb 9, 1954
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1937094

    • Patent number 1,937,094
    • Issue date Nov 28, 1933
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    1900166

    • Patent number 1,900,166
    • Issue date Mar 7, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1886302

    • Patent number 1,886,302
    • Issue date Nov 1, 1932
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1868436

    • Patent number 1,868,436
    • Issue date Jul 19, 1932
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1867148

    • Patent number 1,867,148
    • Issue date Jul 12, 1932
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1854757

    • Patent number 1,854,757
    • Issue date Apr 19, 1932
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    1844062

    • Patent number 1,844,062
    • Issue date Feb 9, 1932
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1789356

    • Patent number 1,789,356
    • Issue date Jan 20, 1931
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1763689

    • Patent number 1,763,689
    • Issue date Jun 17, 1930
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1724676

    • Patent number 1,724,676
    • Issue date Aug 13, 1929
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    1693358

    • Patent number 1,693,358
    • Issue date Nov 27, 1928
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1163439

    • Patent number 1,163,439
    • Issue date Dec 7, 1915
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1062888

    • Patent number 1,062,888
    • Issue date May 27, 1913
    • F28 - HEAT EXCHANGE IN GENERAL