About: http://webisa.webdatacommons.org/91909273

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	His efficient and pollution-free engines use ambient heat to expand a working fluid such as ammonia and move piston
http://www.w3.org/ns/prov#wasQuotedFrom	exdat.com