About: http://webisa.webdatacommons.org/372463070

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	Control systems are widely used today in a broad class of physical systems ranging from the control of elevators to the pumping of oil, in the control of chemical processes, and in electronic systems such as radar and communications.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com