Revue d'histoire de la pharmacie
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Rev Hist Pharm (Paris) · Jul 2010
Historical Article[The pharmacist Ludovic Dardenne and his chocolate hundred-years-old].
Launched in 1910, the brand "Yo-Yo" made the fame of the chocolate factory of the pharmacist Ludovic Dardenne for Luchon. It was then replaced by a "chocolate of regime" still marketed nowadays. The authors present three elements susceptible to inform this transformation: the first presentation of the chocolate Yo-Yo, its patent of manufacturing such as it was registred in 1911, and two typographic patches praising the merits of the chocolate of regime in the 60's.