TREA

Helmut Petsching

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  • Gummersbach, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Arrangement for developing photomaterials in rotatable drum
    • Patent number 4,473,283
    • Issue date Sep 25, 1984
    • Jobo-Labortechnik GmbH & Co. K.G.
    • Rainer Bernhardt
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Film developing spool
    • Patent number 4,448,365
    • Issue date May 15, 1984
    • Jobo-Labortechnik GmbH & Co. K.G.
    • Helmut Petsching
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY