About: http://webisa.webdatacommons.org/290037846

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	It is also recognized that certain metals, metal alloys, fiberglass, or even wood or other materials could be utilized in the practice of this invention but plastics have been found to be preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca