About: http://webisa.webdatacommons.org/382712567

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	In other embodiments, a headgear arrangement not including the tubes (and/or in addition to the tubes) may be utilized for positioning the mask relative to the user.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com