American scientific instrument makers

American experimental physicist, inventor, and professor (1911–1988)

American physicist (1901–1967)

American physicist (1848–1901)

American electrical engineer (1907–1985)

American astronomer (*1732 – †1796)

American inventor (1888–1971)

American chemist (1900–2004)

American inventor and businessman (1854–1940)

American astronomer and instrument builder (1840–1920)

American optician and inventor (1704-1749)

American optician (1905–1961)

geophysicist, developer of ground-penetrating radar (1918-2012)

American businessmen