Family tree of Alphonse POITEVIN
Photographer
Born Alphonse Louis POITEVIN
French chemist, photographer and civil engineer
Born on August 29, 1819 in Conflans-sur-Anille, France , France
Died on March 4, 1882 in Conflans-sur-Anille, France
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... Poitevin discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.
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