CH42617A - Hörtrommel - Google Patents
HörtrommelInfo
- Publication number
- CH42617A CH42617A CH42617A CH42617DA CH42617A CH 42617 A CH42617 A CH 42617A CH 42617 A CH42617 A CH 42617A CH 42617D A CH42617D A CH 42617DA CH 42617 A CH42617 A CH 42617A
- Authority
- CH
- Switzerland
- Prior art keywords
- listening
- drum
- listening drum
- Prior art date
Links
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH42617T | 1908-01-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH42617A true CH42617A (de) | 1909-02-16 |
Family
ID=4272828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH42617A CH42617A (de) | 1908-01-14 | 1908-01-14 | Hörtrommel |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH42617A (de) |
-
1908
- 1908-01-14 CH CH42617A patent/CH42617A/de unknown
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