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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of detecting pinholes in hollow fibers

    • Patent number 4,357,826
    • Issue date Nov 9, 1982
    • Mitsubishi Rayon Company, Ltd.
    • Yasuteru Tahara
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    3302450

    • Patent number 3,302,450
    • Issue date Feb 7, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2642739

    • Patent number 2,642,739
    • Issue date Jun 23, 1953
    • G01 - MEASURING TESTING
  • Information Patent Grant

    2427627

    • Patent number 2,427,627
    • Issue date Sep 16, 1947
    • G01 - MEASURING TESTING