About: http://webisa.webdatacommons.org/242582888

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	An O-ring 82 or other sealing means is additionally provided to insure airtightness and the mouthpiece 76 may also be provided with a finger grip 84.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca