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Patents Grantslast 30 patents

  • Information Patent Grant

    3900541

    • Patent number 3,900,541
    • Issue date Aug 19, 1975
    • E04 - BUILDING
  • Information Patent Grant

    3780975

    • Patent number 3,780,975
    • Issue date Dec 25, 1973
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING