William R. Curtis

Person

  • Bunker Hill, WV, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making extruded plastic members

    • Patent number 5,937,521
    • Issue date Aug 17, 1999
    • Seaward International, Inc.
    • Frank A. March
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL