About: http://webisa.webdatacommons.org/94822382

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 same circuit acts as a buffer amplifier for connecting voice signals received on the same line to a listening device such as a speaker.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com