About: http://webisa.webdatacommons.org/297003611

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 housing is preferably made of conductive material such as copper or brass and defines a cavity 16 within which energy from a balanced line 18 is transformed to an unbalanced line 19 (or vice versa).
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com