Patent:US5433611
| Patent: | US 5433611 |
| Titel: | Teaching apparatus and method for visually representing polynomial expressions |
| Datum: | 18.07.1995 |
| Ort: | |
| Land: | USA |
| Person: | Dreyfous, Ricardo (Condominio Montebello, Apt. J119, |
| Firma: | |
| Links im Rechnerlexikon: | Lehrmittel |
| Schlagworte: | |
| Link zum Patentamt: (ohne Garantie) | US5433611 (espacenet), US5433611 (uspto) |
- Patent Family: ( Patent:CA2131245, Patent:US5433611 )
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US5433611