Otto Lapp

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Leverkusen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Direct positive emulsions containing fogged, monodispersed silver h...
- Patent number 4,045,228
- Issue date Aug 30, 1977
- Agfa-Gevaert N.V.
- Willy Joseph Vanassche
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic material containing fogged, direct positive silver hal...
- Patent number 3,941,595
- Issue date Mar 2, 1976
- AGFA-Gevaert, A.G.
- Erwin Ranz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY