DK34039C - Elektrisk Vakuumrør. - Google Patents
Elektrisk Vakuumrør.Info
- Publication number
- DK34039C DK34039C DK34039DA DK34039C DK 34039 C DK34039 C DK 34039C DK 34039D A DK34039D A DK 34039DA DK 34039 C DK34039 C DK 34039C
- Authority
- DK
- Denmark
- Prior art keywords
- vacuum tube
- electric vacuum
- electric
- tube
- vacuum
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB34039X | 1921-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK34039C true DK34039C (da) | 1925-01-12 |
Family
ID=9757687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK34039D DK34039C (da) | 1921-12-06 | 1922-12-05 | Elektrisk Vakuumrør. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK34039C (da) |
-
1922
- 1922-12-05 DK DK34039D patent/DK34039C/da active
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