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Alfons Schmidt

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  • Horhausen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for producing self-sealing envelopes
    • Patent number 5,201,982
    • Issue date Apr 13, 1993
    • Winkler & Duennebier Maschinenfabrik und Eisengiesserei KG
    • Alfons Schmidt
    • B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD