TREA

Alf Schopper

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  • Meyrin, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drawing frame
    • Patent number 4,480,355
    • Issue date Nov 6, 1984
    • Heberlein Hispano SA
    • Louis Vignon
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Drawing frames
    • Patent number 4,477,945
    • Issue date Oct 23, 1984
    • Heberlein Hispano SA
    • Louis Vignon
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    Surveying device
    • Patent number 4,030,281
    • Issue date Jun 21, 1977
    • Heberlein Hispano S.A.
    • Alf Schopper
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING