Cyrill Demian
18/19th-century Armenian-Austrian inventor; creator of the accordion / From Wikipedia, the free encyclopedia
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Cyrill Demian (Arm. Կյուրեղ Դեմյան) (b.1772, Gherla, Transylvania – d.1849, Vienna) was an Austrian inventor of Armenian-Romanian origin, who made his living as an organ and piano maker with his two sons, Karl and Guido, in Mariahilfer Straße No. 43 in Vienna, Austria. On May 6, 1829, Cyrill and his sons presented a new instrument to the authorities for patent - the accordion. The patent was officially granted on May 23, 1829.[1]