After apprenticing as a printer in Germany, Berliner immigrated to the US and became interested in the new audio technologies of his day. He patented a series of improvements to Alexander Graham Bell’s recently invented telephone before turning his attention to the phonograph. In 1888, he introduced the first flat disc recording, a marked improvement over Thomas Edison’s recording cylinders for the phonograph and a precursor of the modern record. What were some of Berliner’s other inventions? Discuss
Source: The Free Dictionary