About: http://webisa.webdatacommons.org/255996802

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	Crutch tips come in many different shapes, such as, for example and without limitation, frustoconical 101, 111, rectangle 121 or wheel 122.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com