About: http://webisa.webdatacommons.org/135802736

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 pusher is typically biased forward by a biasing element such as a coil spring, connected to a leading edge of a shelf or other structure.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com