About: http://webisa.webdatacommons.org/419111928

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 tube is provided for transporting selected gases, such as air or oxygen, to the enclosed space.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com