On January 31, 1934, Tower Optical Company patented coin controlled binoculars. Tower Optical Company’s binoculars have been used on major tourist sites in the United…
On January 30, 1883, James Ritty and John Birch (brothers) received a patent for the cash register. It was called “Ritty’s Incorruptible Cashier” and was…
The patented intuitive interface allow users to create imaginary three dimensional (3D) objects of any shape using body gestures performed by the users as a…
Cell phone users do not like inadequate mobile device cellular phone coverage. However, cell phone companies find it difficult to optimize the spread of the…
