BE512590A - - Google Patents
Info
- Publication number
- BE512590A BE512590A BE512590DA BE512590A BE 512590 A BE512590 A BE 512590A BE 512590D A BE512590D A BE 512590DA BE 512590 A BE512590 A BE 512590A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radio Relay Systems (AREA)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE309049X | 1951-07-03 | ||
| DE100951X | 1951-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE512590A true BE512590A (ru) |
Family
ID=25750383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE512590D BE512590A (ru) | 1951-07-03 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE512590A (ru) |
| CH (1) | CH309049A (ru) |
| FR (1) | FR1067876A (ru) |
| GB (1) | GB756323A (ru) |
| NL (2) | NL89646C (ru) |
-
0
- NL NLAANVRAGE7208232,A patent/NL170773B/xx unknown
- NL NL89646D patent/NL89646C/xx active
- BE BE512590D patent/BE512590A/xx unknown
-
1952
- 1952-06-23 CH CH309049D patent/CH309049A/de unknown
- 1952-07-01 FR FR1067876D patent/FR1067876A/fr not_active Expired
- 1952-07-03 GB GB16744/52A patent/GB756323A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH309049A (de) | 1955-08-15 |
| NL89646C (ru) | |
| NL170773B (nl) | |
| FR1067876A (fr) | 1954-06-21 |
| GB756323A (en) | 1956-09-05 |