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 )