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Patent:US5836587
| Brevet: | US 5836587 |
| Titre: | Playing cards for an educational game |
| Date: | 17.11.1998 |
| Lieu: | 3 Roundwood Lane, Harpenden |
| Pays: | Ètats-Unis |
| Personne: | Druce, Harry Frederick |
| Entreprise: | |
| Liens internes: | Lehrmittel |
| Mots-Clefs: | |
| Lien à la bureau des brevets: (sans garantie) |  US5836587 (espacenet), US5836587 (uspto) |
Aus der Patentschrift US5836587
- DATUM: 17.11.1998
- TITEL: Playing cards for an educational game
- Patent Family: ( Patent:DE69308013D, Patent:DE69308013T, Patent:EP0616548, Patent:EP0616548, Patent:GB2271515, Patent:GB2271515, Patent:GB9221535D, Patent:GB9319387D, Patent:US5551700, Patent:US5836587, Patent:WO9408671 )