About: http://webisa.webdatacommons.org/7055797

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	FIG. 13 is an arrangement in which the cross rods are centered at essentially the same distance as in FIG. 12 and co-planar but oriented at converging angles in the same plane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr