About: http://webisa.webdatacommons.org/388453490

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	e; and an indicator connected to said signal generator, wherein said indicator is a visual indicator, and wherein said piezoelectric sensor comprises a piezoelectric wafer. 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com