Donald P. Chennells

Person

  • Winnipeg, CA

Patents Applicationslast 30 patents

  • Information Patent Application

    CONCRETE BLOCK PRESS

    • Publication number 20060182839
    • Publication date Aug 17, 2006
    • 4408501 MANITOBA LTD.
    • Donald P. Chennells
    • B28 - WORKING CEMENT, CLAY, OR STONE