About: http://webisa.webdatacommons.org/72850687

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 image pattern is scanned helically by a scanning device such as an optical scanner which is continuously guided parallel to the axis of the image cylinder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com