About: http://webisa.webdatacommons.org/7910263

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 mass sensor according to claim 49 characterized in that two piezoelectric elements are placed on one resonating portion, one of the piezoelectric elements being used for driving and the other being used for sensing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com