About: http://webisa.webdatacommons.org/362581594

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	More particularly, the invention relates to filters, such as cigarette filters, methods of making the filters, and methods of using the filters to filter gases, such as mainstream tobacco smoke.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es