About: http://webisa.webdatacommons.org/360540234

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	According to the invention, a mechanical pointer 8 a, in particular mounted orthogonally relative to the plane defined by the emission directions of the guide beams, is therefore used for positioning via a reference point.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com