Assertion: coaxial cable | /r/HasProperty | invented by mathematician oliver heaviside
Facets:
value: in the year
type: TEMPORAL
Source sentences:
text: It was invented by English engineer and mathematician Oliver Heaviside in the year 1880 and he had his invention patented the same year.
text: Coaxial cable was invented by English engineer and mathematician Oliver Heaviside, who patented the design in 1880.