David M. DuBois

Person

  • Providence, RI, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Convertible toy truck/wagon

    • Patent number 5,383,808
    • Issue date Jan 24, 1995
    • Playskool, Inc.
    • David M. DuBois
    • A63 - SPORTS GAMES AMUSEMENTS