About: http://webisa.webdatacommons.org/50990497

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 foregoing pivotal elements are operative by mechanical, pneumatic, hydraulic, electrical or other suitable means which are well known to the art and which accordingly do not comprise of themselves any part of this invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com