Patent:JP8305460
Patent: | JP 8305460 |
Titel: | Training Machine For Mental Calculation Of Japanese Abacus |
Datum: | 22.11.1996 |
Ort: | |
Land: | Japan |
Person: | Kato Susumu, Kato Koshi, Kato Hisako, Kato Tomohiro, Katou Youta |
Firma: | |
Links im Rechnerlexikon: | Kugelrechner |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | JP8305460 |
- DATUM: 22.11.1996
- TITEL: TRAINING MACHINE FOR MENTAL CALCULATION OF JAPANESE ABACUS
- PERSON: KATO HISAKO