About: http://webisa.webdatacommons.org/278749364

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	It should be noted that this invention can be utilized in various types of apparatus, and is not restricted to the telephone switching system shown.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com