DK45105C - Vakuumrør. - Google Patents
Vakuumrør.Info
- Publication number
- DK45105C DK45105C DK45105DA DK45105C DK 45105 C DK45105 C DK 45105C DK 45105D A DK45105D A DK 45105DA DK 45105 C DK45105 C DK 45105C
- 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 |
---|---|---|---|
NL45105X | 1930-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK45105C true DK45105C (da) | 1932-01-18 |
Family
ID=19755930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK45105D DK45105C (da) | 1930-07-19 | 1931-05-28 | Vakuumrør. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK45105C (da) |
-
1931
- 1931-05-28 DK DK45105D patent/DK45105C/da active
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