BE409369A - - Google Patents
Info
- Publication number
- BE409369A BE409369A BE409369DA BE409369A BE 409369 A BE409369 A BE 409369A BE 409369D A BE409369D A BE 409369DA BE 409369 A BE409369 A BE 409369A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US455279XA | 1934-05-26 | 1934-05-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE409369A true BE409369A (US07714131-20100511-C00038.png) | 1935-06-29 |
Family
ID=21938413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE409369D BE409369A (US07714131-20100511-C00038.png) | 1934-05-26 | 1935-05-09 |
Country Status (5)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2547001A (en) * | 1944-01-26 | 1951-04-03 | Standard Telephones Cables Ltd | Drop channel pulse multiplex system |
| DE970178C (de) * | 1951-09-28 | 1958-08-28 | Eugen Kessler | Automatische Vermittlungseinrichtung fuer Fernmeldeanlagen |
-
1935
- 1935-04-12 GB GB11446/35A patent/GB455279A/en not_active Expired
- 1935-05-07 NL NL73468A patent/NL49328C/xx active
- 1935-05-09 BE BE409369D patent/BE409369A/xx unknown
- 1935-05-23 FR FR794930D patent/FR794930A/fr not_active Expired
- 1935-05-25 FR FR46909D patent/FR46909E/fr not_active Expired
- 1935-05-28 DE DEG90521D patent/DE737864C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR46909E (fr) | 1936-11-07 |
| DE737864C (de) | 1943-07-27 |
| GB455279A (en) | 1936-10-12 |
| NL49328C (US07714131-20100511-C00038.png) | 1940-10-15 |
| FR794930A (fr) | 1936-02-28 |
