About: http://webisa.webdatacommons.org/100934273

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	Where high precision ball joints are required, coil springs may be provided, for example between the two parts of an anti-rotational device 20, to urge the bearing surface (s) onto the ball 32.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com