Erving A. Leonard Jr.

Person

  • Terre Haute, IN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Embossed thermoplastic material

    • Patent number 4,343,848
    • Issue date Aug 10, 1982
    • Ethyl Corporation
    • Erving A. Leonard
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL