Patent:US2193885
Patent: | US 2193885 |
Title: | Music Chart |
Date: | 19.03.1940 |
Place: | |
Country: | USA |
Person: | L. S. Riley |
Company: | |
Internal Links: | Musik |
Keywords: | |
Link to the patent office: (without guarantee) | US2193885 (espacenet), US2193885 (uspto) |
- DATUM: 19.03.1940
- TITEL: Music chart