About: http://webisa.webdatacommons.org/153995519

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	A respirator mask assembly as in claim 4 wherein said piston is a diaphragm.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com