TREA

Bernhard Walther

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  • Dessau, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Film cassette
    • Patent number 3,969,740
    • Issue date Jul 13, 1976
    • Veb Pentacon Dresden
    • Werner Hahn
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Film cassette
    • Patent number 3,944,154
    • Issue date Mar 16, 1976
    • Veb Pentacon Dresden
    • Werner Hahn
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY