Assertion: paper capacitor | /r/ObjectUse | used in late 19th century
Facets:
value: commonly
type: DEGREE
Source sentences:
text: Paper capacitors made by sandwiching a strip of impregnated paper between strips of metal, and rolling the result into a cylinder were commonly used in the late 19th century; their manufacture started in 1876, and they were used from the early 20th century as decoupling capacitors in telecommunications (telephony).