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last 30 patents
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Patent Grant
Process for improving the photoelectric properties of a laminated c...
Patent number
4,386,148
Issue date
May 31, 1983
Elfotec A.G.
Hans Camenisch
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Process for improving the photoelectric properties of a laminated c...
Patent number
4,307,166
Issue date
Dec 22, 1981
Elfotec A.G.
Hans Camenisch
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Procedure for making a reusable photoconducting charge image carrie...
Patent number
4,191,567
Issue date
Mar 4, 1980
Elfotec A.G.
Hans Camenisch
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY