On Aug. 13, 1889 William Gray of Hartford, Connecticut, received a patent for a coin-operated telephone. Soon he formed the Gray Telephone Pay Station Company…
On August 12, 1851, Isaac M. Singer was granted a patent for the first practical and efficient sewing machine. His sewing machine was revolutionary, having…
On August 9, 1898, Rudolf Diesel was granted patent #608,845 for an “internal combustion engine” which was named after him “the Diesel engine”. There was…
Following patent discloses another method for converting 2D video to 3D video. This patent has been filed by Legend3D, Inc., a virtual reality, 3D visual…
