DK57864C - Ventilation pipes. - Google Patents
Ventilation pipes.Info
- Publication number
- DK57864C DK57864C DK57864DA DK57864C DK 57864 C DK57864 C DK 57864C DK 57864D A DK57864D A DK 57864DA DK 57864 C DK57864 C DK 57864C
- Authority
- DK
- Denmark
- Prior art keywords
- ventilation pipes
- ventilation
- pipes
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK57864T | 1938-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK57864C true DK57864C (en) | 1940-08-05 |
Family
ID=8145230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK57864D DK57864C (en) | 1938-10-14 | 1938-10-14 | Ventilation pipes. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK57864C (en) |
-
1938
- 1938-10-14 DK DK57864D patent/DK57864C/en active
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