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Patent:US6447300


Patent:US 6447300
Title:Educational card game
Date:10.09.2002
Place:21508 W. Juniper Ct., Plainfield, IL
Country:USA
Person:Greenberg, Joseph G.
Company:
Internal Links:Lehrmittel
Keywords:
Link to the patent office:
(without guarantee)
 US6447300 (espacenet),  US6447300 (uspto)


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Aus der Patentschrift US6447300