BE351681A - - Google Patents
Info
- Publication number
- BE351681A BE351681A BE351681DA BE351681A BE 351681 A BE351681 A BE 351681A BE 351681D A BE351681D A BE 351681DA BE 351681 A BE351681 A BE 351681A
- Authority
- BE
- Belgium
- Prior art keywords
- relay
- supervisor
- connector
- circuit
- conductor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE351681A true BE351681A (en)) |
Family
ID=26579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE351681D BE351681A (en)) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE351681A (en)) |
-
0
- BE BE351681D patent/BE351681A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BE351681A (en)) | ||
| CH141702A (fr) | Installation téléphonique. | |
| BE352429A (en)) | ||
| BE483916A (en)) | ||
| BE420417A (en)) | ||
| BE363268A (en)) | ||
| CH135611A (fr) | Installation téléphonique. | |
| BE344464A (en)) | ||
| BE384554A (en)) | ||
| BE428323A (en)) | ||
| BE411648A (en)) | ||
| BE347177A (en)) | ||
| BE474772A (en)) | ||
| CH95589A (fr) | Installation téléphonique d'intercommunication entre un bureau central automatique et un bureau privé annexe. | |
| BE409407A (en)) | ||
| BE388990A (en)) | ||
| BE349415A (en)) | ||
| BE415524A (en)) | ||
| BE484075A (en)) | ||
| BE731310A (en)) | ||
| BE353818A (en)) | ||
| BE400690A (en)) | ||
| BE430209A (en)) | ||
| BE436502A (en)) | ||
| BE361645A (en)) |