About: http://webisa.webdatacommons.org/54415532

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	According to the invention the actuators are hydraulic rams and the sources are pumps and the sensor means is a valve openable by the carriage in its rear position to depressurize the guideway-source ram.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es