Patent:US5704790
Patent: | US 5704790 |
Titel: | Methods of playing games which enhance mathematical understanding |
Datum: | 06.01.1998 |
Ort: | (Cambridge, MA), Moses, Maisha V. |
Land: | USA |
Person: | Moses, Robert Parris |
Firma: | |
Links im Rechnerlexikon: | Lehrmittel |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US5704790 (espacenet), US5704790 (uspto) |
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- Patent Family: ( Patent:US5520542, Patent:US5704790 )