About: http://webisa.webdatacommons.org/427263144

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	n of Penntppiioation July 29, 1940, Serial No. 348,143 -3 C. (UE. 5i-l97) The invention refers to abrasive devices of the kind used for sheet metal or other articles especially in the automobile-body industry.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com