Patent:JP2002014606
Patent: | JP 2002014606 |
Titel: | Abacus Type Input Device, Abacus Education Device And Its Recording Medium, And Abacus Education System |
Datum: | 18.01.2002 |
Ort: | |
Land: | Japan |
Person: | Yamada Toshibumi, Miyamoto Yasushi |
Firma: | |
Links im Rechnerlexikon: | Lehrmittel |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | JP2002014606 |
- DATUM: 18.01.2002
- TITEL: ABACUS TYPE INPUT DEVICE, ABACUS EDUCATION DEVICE AND ITS RECORDING MEDIUM, AND ABACUS EDUCATION SYSTEM
- PERSON: YAMADA TOSHIBUMI