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Oswaldo Coutinho de Faria

Oswaldo Coutinho de Faria, Brazilian scientist in France (Rio de Janeiro 1866 -?)
 

INVENTIONS

A simplified system to transform alternate to continuous currents (AC/DC) (showed in 1882)

A transformer (1903)

Kinetophone, a forerunner of vitaphone (1897)

Introduced improvements in radiography and cinematography