TREA

Ronald J. Johnston

Follow

Person

  • Georgetown, CA
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Truss arrangement
    • Patent number 4,926,593
    • Issue date May 22, 1990
    • Aluma Systems Ltd.
    • Ronald J. Johnston
    • E04 - BUILDING
  • Information Patent Grant

    Bolted aluminum shoring frame
    • Patent number 4,841,708
    • Issue date Jun 27, 1989
    • Aluma Systems Incorporated
    • Ronald J. Johnston
    • E04 - BUILDING
  • Information Patent Grant

    Truss arrangement
    • Patent number 4,787,183
    • Issue date Nov 29, 1988
    • Aluma Systems Ltd.
    • Ronald J. Johnston
    • E04 - BUILDING
  • Information Patent Grant

    Clamp for shoring and scaffolding frames
    • Patent number 4,566,819
    • Issue date Jan 28, 1986
    • Aluma Systems, Incorporated
    • Ronald J. Johnston
    • E04 - BUILDING
  • Information Patent Grant

    Wall forming structure for poured concrete walls
    • Patent number 4,033,544
    • Issue date Jul 5, 1977
    • Aluma Building Systems Incorporated
    • Ronald J. Johnston
    • E04 - BUILDING