Assertion: clarinet's instrument | /r/HasProperty | improved
Facets:
value: often
type: TEMPORAL
value: from around 1803
type: TEMPORAL
Source sentences:
text: From around 1803, when the London instrument maker William Bainbridge obtained a number of patents for improvements to the English flageolet, instruments were often referred as "improved" or "patent" flageolets with little reference to how they actually differed from their predecessors.