TREA

John Choong

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  • London, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dismountable structure
    • Patent number 4,711,595
    • Issue date Dec 8, 1987
    • Robert Magid
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Spring-tilt mechanism for a chair or seat
    • Patent number 4,666,121
    • Issue date May 19, 1987
    • Syba Limited
    • John Choong
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Bendable elbow connector
    • Patent number 4,640,642
    • Issue date Feb 3, 1987
    • Magid; Robert
    • Robert Magid
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE