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Patent:US3771409
| Patent: | US 3771409 |
| Title: | Music Teaching Device ... |
| Date: | 13.11.1973 |
| Place: | |
| Country: | USA |
| Person: | James C. Rickey |
| Company: | |
| Internal Links: | Lehrmittel, Musik |
| Keywords: | |
| Link to the patent office: (without guarantee) |  US3771409 (espacenet), US3771409 (uspto) |
- DATUM: 13.11.1973
- TITEL: MUSIC TEACHING DEVICE WITH A COLOR COORDINATED FINGERBOARD REGION AND COLOR CORRELATED FINGERBOARD REGION AND COLOR CORRELATED FINGERBOARD AND NOTATION REGIONS
- PERSON: RICKEY J
- Patent Family: ( Patent:US3554074, Patent:US3771409 )