G - Physics – 09 – B
Patent
G - Physics
09
B
G09B 5/00 (2006.01) G06Q 30/00 (2006.01)
Patent
CA 2496285
Published without an Abstract
Publié sans précis
Alcorn Robert L.
Brown Dorothy R.
Etesse Christopher E.
Fontaine John S.
Perian Scott N.
Blackboard Inc.
Ridout & Maybee Llp
LandOfFree
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