Cyrill Demian

Cyrill Demian in Wien (Vienna), Austria † 1847

Cyrill Demian of Armenian origin, made his living as an organ and piano maker, with his two sons Karl and Guido, in Mariahilfer Straße No. 43 in Vi...

Cyrill Demian of Armenian origin, 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 two sons presented a new instrument to the authorities for patent - the accordion. The patent was officially granted on May 23, 1829.

https://en.wikipedia.org/wiki/Cyrill_Demian

Cyrill Demian
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