About: http://webisa.webdatacommons.org/376128323

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	Thus, movable frame 4 is not limited to a tow frame as shown herein but can also comprise the frame of a self-propelled vehicle such as a tractor.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com