TREA

Ludwig Hettich Schraubenfabrik GmbH & Co.

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  • Schramberg-Sulgen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thread forming screw
    • Patent number 5,674,035
    • Issue date Oct 7, 1997
    • Ludwig Hettich Schraubenfabrik GmbH & Co.
    • Stefan Hettich
    • B28 - WORKING CEMENT, CLAY, OR STONE