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Bob B. Ha

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  • Edmonton, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hammer drill
    • Patent number 6,684,964
    • Issue date Feb 3, 2004
    • Bob B. Ha
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

  • Information Patent Application

    ROLLING HAMMER DRILL
    • Publication number 20070181321
    • Publication date Aug 9, 2007
    • Bob B. Ha
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Rolling hammer drill
    • Publication number 20060016612
    • Publication date Jan 26, 2006
    • Bob B. Ha
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAMMER DRILL
    • Publication number 20030230422
    • Publication date Dec 18, 2003
    • Bob B. Ha
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS