NL7012398A - - Google Patents
Info
- Publication number
- NL7012398A NL7012398A NL7012398A NL7012398A NL7012398A NL 7012398 A NL7012398 A NL 7012398A NL 7012398 A NL7012398 A NL 7012398A NL 7012398 A NL7012398 A NL 7012398A NL 7012398 A NL7012398 A NL 7012398A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691949792 DE1949792A1 (de) | 1969-10-02 | 1969-10-02 | Vorrichtung zur UEberwachung von Fernmeldeleitungen und Funklinien mittels Tonfrequenz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7012398A true NL7012398A (de) | 1971-04-06 |
Family
ID=5747174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7012398A NL7012398A (de) | 1969-10-02 | 1970-08-21 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE756930A (de) |
| CH (1) | CH526237A (de) |
| DE (1) | DE1949792A1 (de) |
| NL (1) | NL7012398A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2838816A1 (de) * | 1978-09-06 | 1980-03-20 | Tekade Felten & Guilleaume | Schleifentest fuer datenuebertragungsstrecken |
| AT406435B (de) * | 1996-07-16 | 2000-05-25 | Ericsson Austria Ag | Verfahren zur ermittlung des leitungszustandes einer übertragungsleitung und schaltungsanordnung zur durchführung des verfahrens |
-
0
- BE BE756930D patent/BE756930A/xx not_active IP Right Cessation
-
1969
- 1969-10-02 DE DE19691949792 patent/DE1949792A1/de active Pending
-
1970
- 1970-07-01 CH CH997870A patent/CH526237A/de not_active IP Right Cessation
- 1970-08-21 NL NL7012398A patent/NL7012398A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE756930A (fr) | 1971-03-16 |
| CH526237A (de) | 1972-07-31 |
| DE1949792A1 (de) | 1971-04-08 |