About: http://webisa.webdatacommons.org/438505955

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	In alternative embodiments, an electric servo, an air driven cylinder, hydraulic cylinder, a pneumatic actuator, extending screw device with an electric motor or other mechanism is provided for actuating the clamp.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com