BE437120A - - Google Patents
Info
- Publication number
- BE437120A BE437120A BE437120DA BE437120A BE 437120 A BE437120 A BE 437120A BE 437120D A BE437120D A BE 437120DA BE 437120 A BE437120 A BE 437120A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
- H03F1/544—Protection of filaments
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Alarm Devices (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB231368X | 1938-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE437120A true BE437120A (cg-RX-API-DMAC7.html) |
Family
ID=10190737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE437120D BE437120A (cg-RX-API-DMAC7.html) | 1938-11-22 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE437120A (cg-RX-API-DMAC7.html) |
| CH (1) | CH231368A (cg-RX-API-DMAC7.html) |
| GB (1) | GB521714A (cg-RX-API-DMAC7.html) |
| NL (1) | NL55182C (cg-RX-API-DMAC7.html) |
-
0
- NL NL55182D patent/NL55182C/xx active
- BE BE437120D patent/BE437120A/xx unknown
-
1938
- 1938-11-22 GB GB33952/38A patent/GB521714A/en not_active Expired
-
1939
- 1939-12-01 CH CH231368D patent/CH231368A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH231368A (fr) | 1944-03-15 |
| NL55182C (cg-RX-API-DMAC7.html) | |
| GB521714A (en) | 1940-05-29 |