About: http://webisa.webdatacommons.org/209349023

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	By the end of the 1970s, the helium neon laser was kept busy in applications such as lowerperformance lasers, scanning cash registers, laser printers and measurement technology.
http://www.w3.org/ns/prov#wasQuotedFrom	50-years-laser.com