The patent was signed by President James Madison. Kies’ technique proved valuable in making cost-effective work bonnets. The first lady Dolly Madison was so pleased…
On March 27, 1935, Henri Selmer filed a patent for an improved saxophone. Henri SELMER is a Paris-based international family-owned enterprise, manufacturer of musical instruments.…
On March 26, 1895, Charles Jenkins patented a motion picture projector named “Phantoscope”. Charles started experimenting with movie film in 1891, and eventually quit his…