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IG Farbenindustrie AG
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IG Farbenindustrie AG
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G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
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FR817742D1936-02-111937-02-11Procédé de production d'émulsions photographiques sensibles à la lumière, avec teneur élevée en halogénure d'argent
ExpiredFR817742A
(fr)