Notable Inventions of the 1930s
Dates for inventions are often controversial. Inventions are often invented by several inventors around the same time, or may be invented in an impractical form many years before another inventor improves the invention into a practical form. Where there is ambiguity, the date of the first working version of the invention is used here.
1930: Neoprene: Wallace Carothers
1930: Photography: Underwater Motion Picture Camera: Arthur C. Pillsbury
1931: The Radio telescope: Karl Jansky Grote Reber
1931: Iconoscope: Vladimir Zworykin
1932: Polaroid glass: Edwin H. Land
1934: Hammond Organ: Laurens Hammond
1935: Microwave RADAR: Robert Watson-Watt
1935: Trampoline: George Nissen and Larry Griswold
1935: Spectrophotometer: Arthur C. Hardy
1935: Casein fiber: Earl Whittier Stephen
1936: Pinsetter (bowling): Gottfried Schmidt
1937: Turboprop engine: Gy?rgy Jendrassik
1937: Jet engine: Frank Whittle and Hans von Ohain
1937: O-ring: Niels Christensen
1937: Nylon: Wallace H. Carothers
1938: Ballpoint pen: Laszlo Biro
1938: Xerography: Chester Carlson
1938: Fiberglass: Russell Games Slayter John H. Thomas
1939: FM radio: Edwin H. Armstrong
1938: LSD: Albert Hofmann
1939: Helicopter: Igor Sikorsky
1939: View-master: William Gruber
1939: Automated teller machine: Luther George Simjian