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JENAer Glaswerk, Schott

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Patents Grantslast 30 patents

  • Information Patent Grant

    Fireproof building element
    • Patent number 4,203,264
    • Issue date May 20, 1980
    • JENAer Glaswerk, Schott
    • Werner Kiefer
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS