by using a fiddle bow or a belt

Industry

  • CPC
  • B23B45/10
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drill for inexperienced users

    • Patent number 6,386,803
    • Issue date May 14, 2002
    • DuPage Children's Museum
    • Richard Sparber
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR