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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of lining a pipe

    • Patent number 4,233,101
    • Issue date Nov 11, 1980
    • Frederick Scragg
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3290199

    • Patent number 3,290,199
    • Issue date Dec 6, 1966
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL