About: http://webisa.webdatacommons.org/173549280

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 apparatus of claim 3, wherein the sensor is a limit switch or proximity sensor. 5.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com