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Willard Harrison Bennett

Born: 1903
Birthplace: Findlay, Ohio

Radio frequency mass spectrometer—Bennett studies in gases ionized by high voltage electricity was used in controlled thermonuclear fusion research. His radio frequency mass spectrometer was the first launched into space to measure the masses of atoms. (1991)

Died: 1987
Alexander Graham BellThe National Inventors Hall of FameEmile Berliner

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