Magnetic core memory – Disposable Tooth Scaler – Nose Rinsing Device
History Frederick Viehe claimed the first patent of the magnetic core memory in 1947, having developed the device in his home laboratory. Separately, substantial work in the field was carried out by the Shanghai-born American physicists, An Wang and Way-Dong Woo, who created the pulse transfer controlling device in 1949. The name referred to the […]