About: http://webisa.webdatacommons.org/425664639

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 angle between the two surfaces is an angle .gamma. which is typically between 15 and 20 degrees.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com