Another important person in creation of the TV technology was Vladimir Zworykin [0]. He developed cathode-ray tube based TV transmission devices that he patent

Another important person in creation of the TV technology was Vladimir Zworykin [0]. He developed cathode-ray tube based TV transmission devices that he patented in 1923 and 1925. [0] https://en.wikipedia.org/wiki/Vladimir_K._Zworykin https://en.wikipedia.org/wiki/Vladimir_K._Zworykin