BE710198A - - Google Patents
Info
- Publication number
- BE710198A BE710198A BE710198DA BE710198A BE 710198 A BE710198 A BE 710198A BE 710198D A BE710198D A BE 710198DA BE 710198 A BE710198 A BE 710198A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST026442 | 1967-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE710198A true BE710198A (sv) | 1968-08-01 |
Family
ID=7460985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE710198D BE710198A (sv) | 1967-02-01 | 1968-02-01 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE710198A (sv) |
| DE (1) | DE1512968A1 (sv) |
| NL (1) | NL6801504A (sv) |
-
1967
- 1967-02-01 DE DE19671512968 patent/DE1512968A1/de active Pending
-
1968
- 1968-02-01 BE BE710198D patent/BE710198A/xx unknown
- 1968-02-01 NL NL6801504A patent/NL6801504A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6801504A (sv) | 1968-08-02 |
| DE1512968A1 (de) | 1969-07-31 |