Matches in DBpedia 2016-04 for { ?s ?p "Alphonse Louis Poitevin (Conflans-sur-Anille, 1819 – Conflans-sur-Anille, 1882) was a French chemist, photographer and civil engineer who discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.He has been described as \"one of the great unheralded figures in photography\"."@en }
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- Alphonse_Louis_Poitevin comment "Alphonse Louis Poitevin (Conflans-sur-Anille, 1819 – Conflans-sur-Anille, 1882) was a French chemist, photographer and civil engineer who discovered the light–sensitive properties of bichromated gelatin and invented both the photolithography and collotype processes.He has been described as \"one of the great unheralded figures in photography\".".