Assertion: carnotite's radium | /r/ObjectUse | used in dial
Facets:
value: as late as the 1950s
type: TEMPORAL
value: as late as the 1960s
type: TEMPORAL
Source sentences:
text: Radium was still used in dials as late as the 1960s, but there were no further injuries to dial painters.
text: Nevertheless, radium was still used in dials as late as the 1950s.