Assertion: cathode ray tube | /r/ObjectUse | used as electrostatic print heads
Facets:
value: in the 1960s
type: TEMPORAL
Source sentences:
text: CRTs with an unphosphored front glass but with fine wires embedded in it were used as electrostatic print heads in the 1960s.
text: CRTs with an unphosphored front glass but with fine wires embedded in it were used as electrostatic print heads in the 1960s.