DK41413C - Vakuumrør. - Google Patents
Vakuumrør.Info
- Publication number
- DK41413C DK41413C DK41413DA DK41413C DK 41413 C DK41413 C DK 41413C DK 41413D A DK41413D A DK 41413DA DK 41413 C DK41413 C DK 41413C
- Authority
- DK
- Denmark
- Prior art keywords
- vacuum tubes
- tubes
- vacuum
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL41413X | 1927-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK41413C true DK41413C (da) | 1930-01-06 |
Family
ID=19755754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK41413D DK41413C (da) | 1927-05-21 | 1928-04-16 | Vakuumrør. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK41413C (da) |
-
1928
- 1928-04-16 DK DK41413D patent/DK41413C/da active
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