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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	EndNote, RefManPatent Citations (10), Referenced by (107), Classifications (16), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetElectronic blackboard and accessories such as writing tools
http://www.w3.org/ns/prov#wasQuotedFrom	google.com