About: http://webisa.webdatacommons.org/42056805

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	A further object of this invention is to provide a sheathed hypodermic needle having a retractable sheath which does not require modifications to the syringe or other instruments to which it is attached.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es