DK41688C - Acoustic Horn. - Google Patents
Acoustic Horn.Info
- Publication number
- DK41688C DK41688C DK41688DA DK41688C DK 41688 C DK41688 C DK 41688C DK 41688D A DK41688D A DK 41688DA DK 41688 C DK41688 C DK 41688C
- Authority
- DK
- Denmark
- Prior art keywords
- acoustic horn
- horn
- acoustic
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41688XA | 1924-12-31 | 1924-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK41688C true DK41688C (en) | 1930-02-24 |
Family
ID=21709512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK41688D DK41688C (en) | 1924-12-31 | 1925-10-09 | Acoustic Horn. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK41688C (en) |
-
1925
- 1925-10-09 DK DK41688D patent/DK41688C/en active
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