BE510920A - - Google Patents
Info
- Publication number
- BE510920A BE510920A BE510920DA BE510920A BE 510920 A BE510920 A BE 510920A BE 510920D A BE510920D A BE 510920DA BE 510920 A BE510920 A BE 510920A
- 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)
- Monitoring And Testing Of Exchanges (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL8846A DE886765C (de) | 1951-04-24 | 1951-04-24 | Schaltungsanordnung fuer Fernsprechanlagen mit Haupt- und Unteraemtern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE510920A true BE510920A (en:Method) | 1952-05-15 |
Family
ID=25786750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE510920D BE510920A (en:Method) | 1951-04-24 | 1952-04-24 |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE510920A (en:Method) |
| CH (1) | CH302752A (en:Method) |
| DE (1) | DE886765C (en:Method) |
| FR (1) | FR1055084A (en:Method) |
| GB (1) | GB727586A (en:Method) |
| NL (1) | NL83257C (en:Method) |
-
0
- GB GB727586D patent/GB727586A/en not_active Expired
-
1951
- 1951-04-24 DE DEL8846A patent/DE886765C/de not_active Expired
-
1952
- 1952-04-19 CH CH302752D patent/CH302752A/de unknown
- 1952-04-23 NL NL83257D patent/NL83257C/xx active
- 1952-04-23 FR FR1055084D patent/FR1055084A/fr not_active Expired
- 1952-04-24 BE BE510920D patent/BE510920A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH302752A (de) | 1954-10-31 |
| NL83257C (en:Method) | 1956-06-15 |
| FR1055084A (fr) | 1954-02-16 |
| GB727586A (en) | 1951-04-06 |
| DE886765C (de) | 1953-08-17 |