Cliff Hawkes

Person

  • McPherson, KS, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Triwall siding apparatus

    • Patent number 4,911,628
    • Issue date Mar 27, 1990
    • American Maplan Corporation
    • Peter Heilmayr
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL