About: http://webisa.webdatacommons.org/215238646

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	BACKGROUND OF THE INVENTION Photothermographic film generally comprises a base material, such as a thin polymer or paper, typically coated on one side with an emulsion of heat sensitive materials.
http://www.w3.org/ns/prov#wasQuotedFrom	sumobrain.com