Patent:US4883277
Patent: | US 4883277 |
Titel: | Educational board game for teaching mathematics and logic |
Datum: | 28.11.1989 |
Ort: | 9113 W. 69th Ter., Merriam, KS 66204 |
Land: | USA |
Person: | Laisure, Thomas J. |
Firma: | |
Links im Rechnerlexikon: | Lehrmittel |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US4883277 (espacenet), US4883277 (uspto) |
- DATUM: 28.11.1989
- TITEL: Educational board game for teaching mathematics and logic
- PERSON: LAISURE THOMAS J US