<http://webisa.webdatacommons.org/122857256>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.co.uk> .
<http://webisa.webdatacommons.org/122857256>	<http://www.w3.org/ns/prov#value>	"Optionally, a spring or other mechanism may be provided for biasing the piston 60??? distally or proximally, e.g., an extension spring 74??? may be provided for biasing the frame 180 towards the collapsed state, similar to the fluid-activated mechanism described above." .
<http://webisa.webdatacommons.org/122857256>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/423049535>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/122857256> .