About: http://webisa.webdatacommons.org/202681106

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	To provide recesses in the frame members of U.S. Pat. Nos. 4,026,782 and 4,175,025, operations such as machining must be employed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com