TREA

Richard D. Marshall

Follow

Person

  • Skelmersdale, GB
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Breathing apparatus
    • Patent number 10,668,307
    • Issue date Jun 2, 2020
    • Scott Health & Safety Ltd.
    • Albert F. Zwolinsky
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Improvements to powered air breathing apparatus
    • Patent number 9,387,299
    • Issue date Jul 12, 2016
    • Scott Health & Safety Ltd.
    • Albert F. Zwolinsky
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents