John D. Birdsall

Person

  • Los Angeles, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Pencil sharpener

    • Patent number 3,980,113
    • Issue date Sep 14, 1976
    • Hasbro Development Corporation
    • John D. Birdsall
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES