Alexandre Debain
id:
alexandre-debain-0-4330144
title:
Alexandre Debain
text:
Alexandre-François Debain was a French inventor who developed the harmonium. He made a new action system, in which, when depressing a note on the keyboard, a valve opened thereby emitting sound from the instrument. He patented it in Paris in 1842.
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Alexandre_Debain
date created:
date modified:
2021-05-04T04:37:46Z
main entity:
{"identifier":"Q774040","url":"https://www.wikidata.org/entity/Q774040"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/b/ba/Harmonium_Debain.jpg","width":608,"height":702}
fields total:
13
integrity:
14