Patent:JP11119896
Brevetto: | JP 11119896 |
Titolo: | Abacus Type Input Device, Abacus Practice Device, And Network Of The Same |
Data: | 30.04.1999 |
Luogo: | |
Nazione: | Giappone |
Persona: | Hirai Yoshihiro |
Ditta: | |
Link interni: | Kugelrechner |
Keywords: | |
Link al brevetto: (without guarantee) | ![]() |
- DATUM: 30.04.1999
- TITEL: ABACUS TYPE INPUT DEVICE, ABACUS PRACTICE DEVICE, AND NETWORK OF THE SAME
- PERSON: HIRAI YOSHIHIRO