TREA

Ralph J. Williams

Follow

Person

  • New Oxford, PA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Armrest for a seat
    • Patent number 4,438,975
    • Issue date Mar 27, 1984
    • Dentsply Research & Development Corp.
    • Ralph J. Williams
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Air gap system to maintain pure liquid supplies
    • Patent number 4,414,998
    • Issue date Nov 15, 1983
    • Dentsply Research & Development Corp.
    • Helmut Rudler
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Operatory chair operating mechanism
    • Patent number 3,982,718
    • Issue date Sep 28, 1976
    • Dentsply Research & Development Corporation
    • Richard P. Folkenroth
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE