Assertion: flow meter | /r/HasProperty | built in 1970
Facets:
Source sentences:
text: The first industrial Coriolis patents date back to the 1950s, and the first Coriolis mass flow meters were built in the 1970s.
text: The first industrial Coriolis patents date back to the 1950s, and the first Coriolis mass flow meters were built in the 1970s.