About: http://webisa.webdatacommons.org/324832100

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	Potentiometers, reed switches, and other types of switches have been used in the past in order to supply signals indicative of the position of the walking beam.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com