About: http://webisa.webdatacommons.org/409754849

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 present invention relates to a handheld device for applying flat, annular reinforcing rings about apertures already punched in sheets of material, such as paper.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com