Zworykin first demonstrates his electric camera tube and receiver for Westinghouse corporation executives, transmitting the still image of an "X".Vladimir Zworykin applies for a patent for color television.Charles Francis Jenkins achieves the first synchronized transmission of a moving silhouette (shadowgraphs) and sound, using 48 lines, and a mechanical system.1925: John Logie Baird performs the first public demonstration of his "televisor" at the Selfridges department store on London's Oxford Street.Vladimir Zworykin files a patent application for the kinescope, a television picture receiver tube.1924: John Logie Baird demonstrates a semi-mechanical television system with the transmission of moving silhouette images in England.The patent is not granted until 1938 after significant revisions and patent interference actions. Vladimir Zworykin applies for a patent for an all-electronic television system, the first ancestor of the electric scanning television camera.This time 48-line moving silhouette images are transmitted at 16 frames per second from Washington to Anacostia Navy station. 1923: Charles Jenkins first demonstrates "true" television with moving images.Philo Farnsworth first describes an image dissector tube, which uses cesium to produce images electronically, but will not produce a working model until 1927.to the Navy station NOF in Anacostia by telephone wire, and then wirelessly back to Washington. A set of static photographic pictures is transmitted from Washington, D.C.
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