who invented it?
William Kennedy Laurie Dickson.
Kinetoscope
The concept was also used by U.S. inventor Thomas Edison in 1889, and subsequently developed by his employee William Kennedy Laurie Dickson between 1889 and 1892.
what is kinetoscope? An early motion picture exhibition device.
wiki:11759193
Kinetoscope [SEP] Introduction
by French inventor Louis Le Prince. The concept was also used by U.S. inventor Thomas Edison in 1889, and subsequently developed by his employee William Kennedy Laurie Dickson between 1889 and 1892. Dickson and his team at the Edison lab also devised the Kinetograph, an innovative motion picture camera with rapid intermittent, or stop-and-go, film movement, to photograph movies for in-house experiments and, eventually, commercial Kinetoscope presentations. A prototype for the Kinetoscope was shown to a convention of the National Federation of Women's Clubs on May 20, 1891. The first public demonstration of the Kinetoscope was held at the Brooklyn Institute of Arts and Sciences on May 9, 1893.