DK33131C - Frequency relay. - Google Patents
Frequency relay.Info
- Publication number
- DK33131C DK33131C DK33131DA DK33131C DK 33131 C DK33131 C DK 33131C DK 33131D A DK33131D A DK 33131DA DK 33131 C DK33131 C DK 33131C
- Authority
- DK
- Denmark
- Prior art keywords
- frequency relay
- relay
- frequency
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE33131X | 1917-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
DK33131C true DK33131C (en) | 1924-04-28 |
Family
ID=5622326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK33131D DK33131C (en) | 1917-12-20 | 1921-03-23 | Frequency relay. |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK33131C (en) |
-
1921
- 1921-03-23 DK DK33131D patent/DK33131C/en active
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