Raymond L. Upchurch

Person

  • Texarkana, AK, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Solvent extraction apparatus

    • Patent number 4,307,064
    • Issue date Dec 22, 1981
    • The French Oil Mill Machinery Company
    • William M. Barger
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL