CINEMANIA: Guess the movie title
See negative of movie scene and guess the title. Length of words in solution: 5,4Correct answers: 19
The first user who solved this task is Manguexa Wagle.
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Hearing aidIn 1880, the first U.S. patent for an electric hearing aid was issued to Francis D. Clarke and M.G. Foster, titled a Device for Aiding the Deaf to Hear (No. 226,902). The device employed bone conduction by which sound is passed through vibration of the skull bone. It was not until 1901 that the first commercially available hearing aid was produced, the Acousticon, invented by Miller Reese Hutchinson.. |