About: http://webisa.webdatacommons.org/52335766

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 apparatus as set forth in claim 1, said control unit including means for preventing the audible sound delivered by said transceiver from exceeding 95 decibels sound pressure level at the ear canal of a person wearing said ear pieces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com