Cyrill Demian
With his sons, filed the 1829 Accordion patent that documents an early bellows-instrument design.
- Years
- 1774–1847
- Place of work
- Vienna, Austrian Empire
- Field
- Instrument maker
Cyrill Demian made organs and pianos in Vienna and obtained a piano-making licence in 1810. In May 1829 he and his sons Karl and Guido submitted a description and drawings of a portable bellows instrument called the Accordion. Their patent was granted later that month. Its buttons sounded chords through metal reeds driven by the bellows.
The patent was extended in 1831. It became an important early document in the development of the accordion, though the surviving records do not establish precisely how the work was divided among father and sons. The application is best understood as a joint undertaking rooted in Vienna's instrument-making trade.
Selected work and documents
- Accordion patent application1829
Description and drawings filed jointly with Karl and Guido Demian.
Type / datePatent · 1829
Document source - Patent extension1831
The joint privilege was extended two years after the initial filing.
Type / datePatent record · 1831
Document source