On January 18, 1902, Nikola Tesla patented a magnifying transmitter for wireless transmission of electrical energy. In his autobiography, Tesla stated that “. . .…
On January 17, 1882, Leroy Firman received a patent for the telephone switchboard. Patent Information Publication number: US252576 A Patent Title: Multiple switch-board for…
On January 16, 1909, David G Galbraith patented an improved paper clip. Patent Information Publication number: US957764 A Patent Title: Paper Clip Publication type:…
On January 15, 1846, Samuel Morse received patent for an improved single-wire telegraph system. He also helped to develop the commercial use of telegraphy. By…
Patent Information Publication number: US2524035 A Patent Title: Three-electrode circuit element utilizing semiconductive materials Publication type: Grant Publication date: Oct 3, 1950 Filing date: Jun…
