and Hans von Ohain 1937年: O-ring: Niels Christensen 1938年: Ballpoint pen: Laszlo Biro 1938: 玻璃纖維強化塑膠: Russell Games Slayter John H. Thomas 1939年: FM radio:
lisse-étale topoi. Some of these errors were fixed by Olsson (2007). Laszlo, Yves; Olsson, Martin, The six operations for sheaves on Artin stacks. I. Finite