About: http://webisa.webdatacommons.org/151638853

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	An apparatus according to claim 1, and including a zero-crossing circuit for permitting the switch to interrupt the power supply only at the zero-crossing point of the power being supplied to the load.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com