Paul Spira

Person

  • St-Laurent, CA

Patents Grantslast 30 patents

  • Information Patent Grant

    Continuous silver refining cell

    • Patent number 5,100,528
    • Issue date Mar 31, 1992
    • Noranda, Inc.
    • Pierre L. Claessens
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR