Walter Kroha

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Wolfen, DD

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Patents Grantslast 30 patents

Information Patent Grant
Process for the introduction of hydrophobic photographic additives
- Patent number 4,419,440
- Issue date Dec 6, 1983
- VEB Filmfabrik Wolfen
- Lothar Kuhnert
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of dispersing oil soluble photographic additives
- Patent number 4,410,624
- Issue date Oct 18, 1983
- VEB Filmfabrik Wolfen
- Dieter Plaschnick
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY