[Dr. Manuel Ferreyra and his devices].
Two digitally reprocessed pictures are analyzed in order to distinguish the devices used by this professional in his daily practice as well as his experiments.
Ponticelli
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D001118:Argentina; D018865:Dental Research / Q000266:history*; D004560:Electricity / Q000266:history*; D004864:Equipment and Supplies / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century
El Dr. Manuel Ferreyra y sus aparatos.