About: http://webisa.webdatacommons.org/156093262

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	It is a still further object of this invention to provide such a vacuum cleaner, incorporating a light pipe, which only requires one light pipe and one light bulb or other light source.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk