About: http://webisa.webdatacommons.org/393774971

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 stand-off device as set forth in claim 1 wherein said means for closing said opening is a membrane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au