NL55678C - - Google Patents
Info
- Publication number
- NL55678C NL55678C NL55678DA NL55678C NL 55678 C NL55678 C NL 55678C NL 55678D A NL55678D A NL 55678DA NL 55678 C NL55678 C NL 55678C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/1607—Supply circuits
- H04B1/1623—Supply circuits using tubes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Particle Accelerators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2449685X | 1940-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL55678C true NL55678C (enEXAMPLES) |
Family
ID=19874248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL55678D NL55678C (enEXAMPLES) | 1940-08-28 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2449685A (enEXAMPLES) |
| FR (1) | FR876178A (enEXAMPLES) |
| NL (1) | NL55678C (enEXAMPLES) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594530A (en) * | 1948-10-02 | 1952-04-29 | Bell Telephone Labor Inc | Amplifying system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB551234A (en) * | 1941-12-11 | 1943-02-12 | Philips Nv | Improvements in or relating to radio-receivers or amplifiers arranged to be fed from direct current mains |
-
0
- NL NL55678D patent/NL55678C/xx active
-
1941
- 1941-10-22 FR FR876178D patent/FR876178A/fr not_active Expired
-
1946
- 1946-05-09 US US668425A patent/US2449685A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2449685A (en) | 1948-09-21 |
| FR876178A (fr) | 1942-10-29 |