William Joseph Gross

Person

  • Rancho Palos Verdes, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Toy simulating a calculator

    • Patent number 4,075,771
    • Issue date Feb 28, 1978
    • Mattel, Inc.
    • Edmund Emil Landsinger
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS