History of Philo T. Farnsworth, Utah
Taken from the Utah History Encyclopedia. (Links Added)

In February 1922 Farnsworth drew an "image dissector" for his teacher Justin Tolmna. This sketch later would help Farnsworth obtain his legal right to the patent for the invention of the television. By 1926 Farnsworth and his friend George Everson had obtained financial backing for their research from a group of San Francisco investors. This funding allowed their research to pursue an electronic scanning and receiving system. Farnsworth had no experience with high-vacuum physics, but came up with a way to seal a flat lens end on a dissector camera tube and create in it a very high vacuum. The result of his hard work came on 7 September 1927 as he demonstrated a camera, a synchronization system, and a receiver. *He had patented and produced the first operational, all-electronic television system.

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