About: http://webisa.webdatacommons.org/297783129

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 actuating means is a finger actuated elliptical disc mounted for reciprocation in the central cavity about a shaft.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es