TREA

Charles E. Hopkins Sr.

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  • Baltimore, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power-driven drill and screwdriver
    • Patent number 4,161,242
    • Issue date Jul 17, 1979
    • Black & Decker Inc.
    • Robert G. Moores
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Combination power tool
    • Patent number 4,159,050
    • Issue date Jun 26, 1979
    • Black & Decker Inc.
    • Charles E. Hopkins
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR