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Oce-van der Grinten
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Venlo, NL
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Patents Grants
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Patent Grant
Composition and process for developing diazotype material
Patent number
4,286,041
Issue date
Aug 25, 1981
Oce-van der Grinten
Wilhelmus J. M. van de Vorle
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY