BE438747A - - Google Patents
Info
- Publication number
- BE438747A BE438747A BE438747DA BE438747A BE 438747 A BE438747 A BE 438747A BE 438747D A BE438747D A BE 438747DA BE 438747 A BE438747 A BE 438747A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Structure Of Telephone Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL97952D DE757151C (de) | 1939-05-13 | 1939-05-13 | Amtsweiche fuer gleichzeitig niederfrequent und traegerfrequent ausgenutzte Telefonleitungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE438747A true BE438747A (en:Method) |
Family
ID=7288719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE438747D BE438747A (en:Method) | 1939-05-13 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE438747A (en:Method) |
| DE (1) | DE757151C (en:Method) |
-
0
- BE BE438747D patent/BE438747A/xx unknown
-
1939
- 1939-05-13 DE DEL97952D patent/DE757151C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE757151C (de) | 1954-02-15 |