<http://webisa.webdatacommons.org/prov/215211854>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/111378530> .
<http://webisa.webdatacommons.org/111378530>	<http://www.w3.org/ns/prov#value>	"Known in the art is a device for restoring the function of the foot which has a mechanism for restoring the function of the ankle joint (cf. the USSR Inventor's Certificate No. 474,171, Int.Cl.A61B 17/18, 1973)." .
<http://webisa.webdatacommons.org/111378530>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/111378530>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .