About: http://webisa.webdatacommons.org/71572389

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 servo positioning apparatus recited in claim 13, wherein said detachable unit comprises a disk, and said object is a head for writing and reading information in said disk.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com