BE510921A - - Google Patents
Info
- Publication number
- BE510921A BE510921A BE510921DA BE510921A BE 510921 A BE510921 A BE 510921A BE 510921D A BE510921D A BE 510921DA BE 510921 A BE510921 A BE 510921A
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE302751X | 1951-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE510921A true BE510921A (en, 2012) |
Family
ID=6107669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE510921D BE510921A (en, 2012) | 1951-04-24 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE510921A (en, 2012) |
| CH (1) | CH302751A (en, 2012) |
| FR (1) | FR1055085A (en, 2012) |
| GB (1) | GB719656A (en, 2012) |
-
0
- BE BE510921D patent/BE510921A/xx unknown
-
1952
- 1952-04-19 CH CH302751D patent/CH302751A/de unknown
- 1952-04-23 GB GB10220/52A patent/GB719656A/en not_active Expired
- 1952-04-23 FR FR1055085D patent/FR1055085A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB719656A (en) | 1954-12-08 |
| FR1055085A (fr) | 1954-02-16 |
| CH302751A (de) | 1954-10-31 |