Search Results for: Ultrasonic scanning apparatus
oscilloscope attached. while pressing a switch, the oscilloscope showed a continuous sine wave, proving that his integrated circuit worked. a patent for a "solid circuit made of germanium", the first integrated circuit, was filed by its inventor, jack kilby on february , . [ ] fusor the fusor is an apparatus
of stationery with a re-adherable strip of adhesive on the back, designed for temporarily attaching notes to documents and to other surfaces such as walls, desks and table-tops, computer displays, and so forth. post-it notes were co-invented by m employees arthur fry and spencer silver in . [ ] scanning...
https://en.wikipedia.org/wiki/Timeline_of_United_States_inventions_(1946%E2%80%931991)