TREA

Hans Emmer

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  • Liestal, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Facade structure
    • Patent number 4,854,098
    • Issue date Aug 8, 1989
    • Eltreva AG
    • Hans Emmer
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Facade system of metal sections
    • Patent number 4,809,475
    • Issue date Mar 7, 1989
    • Eltreva AG
    • Hans Emmer
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    Frame structure
    • Patent number 4,742,658
    • Issue date May 10, 1988
    • Eltreva AG
    • Hans Emmer
    • E04 - BUILDING
  • Information Patent Grant

    Facade wall
    • Patent number 4,704,831
    • Issue date Nov 10, 1987
    • Eltreva AG
    • Hans Emmer
    • E04 - BUILDING