TREA

Johannis Istha

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  • Utrecht, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cantilevered roof construction
    • Patent number 5,815,989
    • Issue date Oct 6, 1998
    • Hendrik Willem Bennenk
    • E04 - BUILDING
  • Information Patent Grant

    Cord-locking device
    • Patent number 4,413,664
    • Issue date Nov 8, 1983
    • Verosol B.V.
    • Johannis Istha
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS