About: http://webisa.webdatacommons.org/411544895

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	What was on display was a very early experimental version of the laryngeal mask made in the year 1981.
http://www.w3.org/ns/prov#wasQuotedFrom	howequipmentworks.com