About: http://webisa.webdatacommons.org/51862990

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 density filter 173 is driven to rotate by a drive mechanism (a density-filter drive mechanism 244 shown in FIG. 5) including a driver such as a motor.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com