About: http://webisa.webdatacommons.org/59971851

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 prior art contains various devices for mounting, lifting and folding flexible sheet material in association with blinds, curtains, draperies and other window coverings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com