About: http://webisa.webdatacommons.org/200908183

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 invention particularly contemplates a device of the type indicated which is of relatively simple inexpensive design capable of being easily assembled and accessible for in-service switch inspection and adjustment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es