About: http://webisa.webdatacommons.org/212082490

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	The invention will be described with reference to the case where the element to be detected is a light intercepting plate and the non-contacting type detector used is a photoelectric tube device.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com