About: http://webisa.webdatacommons.org/401160361

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	This invention is directed toward the technical field of new and improved acoustic tranducers, and more particularly toward the field of pointed or conical element point-contact acoustic tranducers.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com