About: http://webisa.webdatacommons.org/309359181

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	The teaching machine of claim 1 wherein: the reproducing means includes first and second tape players, the first player including the first transducer and the second player including the second transducer. 4.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com