About: http://webisa.webdatacommons.org/448940785

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	Various devices have been devised to anchor various objects to a wall, such devices including barbed plugs, screws engaging an expanding leg member, rivets and
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com