Word: oscillograph
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Dates: during 1931-1931
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...heart disease; in Schenectady, N. Y. Head of General Electric's standardizing laboratory since 1896, he became engineer-in-charge when it was merged in 1919 with the consulting laboratory which the late great Dr. Charles Proteus Steinmetz founded. Under Dr. Robinson's direction were brought out the oscillograph, the mercury arc rectifier, the photophone...