About: http://webisa.webdatacommons.org/48003502

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	FIG. 18 is an eleventh embodiment of the invention and showing the piston in a fully extended position in solid lines and a fully retracted position in dashed lines;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com