DK28530C - Headphone. - Google Patents
Headphone.Info
- Publication number
- DK28530C DK28530C DK28530DA DK28530C DK 28530 C DK28530 C DK 28530C DK 28530D A DK28530D A DK 28530DA DK 28530 C DK28530 C DK 28530C
- Authority
- DK
- Denmark
- Prior art keywords
- headphone
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK28530T | 1919-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK28530C true DK28530C (en) | 1921-09-26 |
Family
ID=8116428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK28530D DK28530C (en) | 1919-04-28 | 1919-04-28 | Headphone. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK28530C (en) |
-
1919
- 1919-04-28 DK DK28530D patent/DK28530C/en active
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