NL70170C - - Google Patents
Info
- Publication number
- NL70170C NL70170C NL70170DA NL70170C NL 70170 C NL70170 C NL 70170C NL 70170D A NL70170D A NL 70170DA NL 70170 C NL70170 C NL 70170C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB219021X | 1939-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL70170C true NL70170C (xx) | 1900-01-01 |
Family
ID=10170719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL70170D NL70170C (xx) | 1939-06-17 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE475394A (xx) |
| CH (1) | CH219021A (xx) |
| FR (1) | FR956830A (xx) |
| NL (1) | NL70170C (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE932135C (de) * | 1952-05-24 | 1955-08-25 | Felten & Guilleaume Carlswerk | Einrichtung zur UEberwachung, Fernsteuerung bzw. Fehlerortung von UEbertragungsanlagen |
| DE943476C (de) * | 1952-07-15 | 1956-05-24 | Felten & Guilleaume Carlswerk | Anordnung zur Fernumschaltung von Verstaerkern in unbemannten Zwischenstationen |
| DE951508C (de) * | 1953-01-15 | 1956-10-31 | Felten & Guilleaume Carlswerk | Einrichtung bei UEbertragungsanlagen mit mehreren unbemannten und ferngespeisten Verstaerkerstationen zur Umschaltung der Betriebsverstaerker auf Reserveverstaerker |
-
0
- FR FR956830D patent/FR956830A/fr not_active Expired
- NL NL70170D patent/NL70170C/xx active
- BE BE475394D patent/BE475394A/xx unknown
-
1940
- 1940-10-04 CH CH219021D patent/CH219021A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH219021A (de) | 1942-01-15 |
| BE475394A (xx) | 1900-01-01 |
| FR956830A (xx) | 1950-02-08 |