About: http://webisa.webdatacommons.org/298605341

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	pen top (12.1) is provided with an outer wall (12.2) of an insulating material such as plastic or cork or the like preferably having a coefficient of thermal conductivity less than about 0.5 Btu-ft/ (ft2) (hr) (??F.).
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com