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…
On March 25, 1902, Irving W Colburn patented the sheet glass drawing machine, making the mass production of glass for windows possible. Colburn developed a…
Radiation emitted from cell phones may be injurious to a human user. The patented sheild is used to encase a cell phone. The shield prevents…
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