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Patents Grantslast 30 patents

  • Information Patent Grant

    Impactor
    • Patent number 4,295,411
    • Issue date Oct 20, 1981
    • Joy Manufacturing Company
    • Innes Grantmyre
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer
    • Patent number 4,261,249
    • Issue date Apr 14, 1981
    • Joy Manufacturing Company
    • Innes Grantmyre
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...