About: http://webisa.webdatacommons.org/419203651

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 would also be desirable to provide such an ultrasonic detector which has a flat face and does not require any protruding horn or other structures to control the ultrasonic beam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com