About: http://webisa.webdatacommons.org/225846111

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 brake as recited in claim 1, wherein the valve is a pneumatic valve, such that the brake is activated when a pressure within the pneumatic valve drops to a predetermined pressure level.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com