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Patents Grantslast 30 patents

  • Information Patent Grant

    3622287

    • Patent number 3,622,287
    • Issue date Nov 23, 1971
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    2866506

    • Patent number 2,866,506
    • Issue date Dec 30, 1958
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...