About: http://webisa.webdatacommons.org/14877835

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 some embodiments, the compressed air may be replaced with another fluid such as another gas or a liquid for driving the piston assembly 95 as described herein.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com