Cyrill Demian

Cyrill Demian (1772–1849) was an Austrian-Armenian inventor, Organ maker, and piano maker who on May 6, 1829, along with his sons Karl and Guido, would patent the accordion. This patent would later be granted on  May 23, 1829.

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Category:1772 births
Category:1849 deaths
Category:Inventors
Category:Austrian people