About: http://webisa.webdatacommons.org/309845950

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	The apparatus for permanent disposal of radioactive waste gases according to claim 14, wherein the stopper is prepared from heat-resistant material such as graphite, pyrocarbon, magnesia, calcia and zirconia.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com