FR2018446A1 - - Google Patents
Info
- Publication number
- FR2018446A1 FR2018446A1 FR6931894A FR6931894A FR2018446A1 FR 2018446 A1 FR2018446 A1 FR 2018446A1 FR 6931894 A FR6931894 A FR 6931894A FR 6931894 A FR6931894 A FR 6931894A FR 2018446 A1 FR2018446 A1 FR 2018446A1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Interface Circuits In Exchanges (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681762897 DE1762897B2 (de) | 1968-09-19 | 1968-09-19 | Schaltungsanordnung zur auswertung des schleifenzustandes und zur unterscheidung von schleifenwiderstaenden in einer fernmelde insbesondere fernsprechleitung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2018446A1 true FR2018446A1 (fr) | 1970-05-29 |
Family
ID=5697274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6931894A Withdrawn FR2018446A1 (fr) | 1968-09-19 | 1969-09-19 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3673356A (fr) |
| AT (1) | AT314619B (fr) |
| CH (1) | CH514968A (fr) |
| DE (1) | DE1762897B2 (fr) |
| DK (1) | DK137879C (fr) |
| ES (1) | ES371615A1 (fr) |
| FR (1) | FR2018446A1 (fr) |
| GB (1) | GB1237854A (fr) |
| NL (1) | NL6914297A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889073A (en) * | 1974-03-06 | 1975-06-10 | Bell Telephone Labor Inc | Detection of series-resonant circuits connected across transmission paths |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1652241A (en) * | 1926-06-21 | 1927-12-13 | American Telephone & Telegraph | Device for electrical measurement |
| US2731514A (en) * | 1951-01-12 | 1956-01-17 | Nederlanden Staat | Lockout electronic line circuit |
| BE536017A (fr) * | 1954-02-26 | |||
| US3129289A (en) * | 1959-06-26 | 1964-04-14 | Itt | Electronic line circuit |
| US3156778A (en) * | 1959-12-24 | 1964-11-10 | Bell Telephone Labor Inc | Supervisory circuits for telephone subscriber's line |
| BE633291A (fr) * | 1962-03-01 | |||
| US3363067A (en) * | 1964-12-31 | 1968-01-09 | Bell Telephone Labor Inc | Dial noise test set |
-
1968
- 1968-09-19 DE DE19681762897 patent/DE1762897B2/de not_active Withdrawn
-
1969
- 1969-08-27 AT AT817569A patent/AT314619B/de not_active IP Right Cessation
- 1969-09-05 US US855721A patent/US3673356A/en not_active Expired - Lifetime
- 1969-09-11 GB GB44938/69A patent/GB1237854A/en not_active Expired
- 1969-09-17 ES ES371615A patent/ES371615A1/es not_active Expired
- 1969-09-18 DK DK496869A patent/DK137879C/da active
- 1969-09-19 FR FR6931894A patent/FR2018446A1/fr not_active Withdrawn
- 1969-09-19 CH CH1415569A patent/CH514968A/de not_active IP Right Cessation
- 1969-09-19 NL NL6914297A patent/NL6914297A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| NL6914297A (fr) | 1970-03-23 |
| US3673356A (en) | 1972-06-27 |
| DE1762897A1 (de) | 1970-12-03 |
| AT314619B (de) | 1974-04-10 |
| DK137879B (da) | 1978-05-22 |
| ES371615A1 (es) | 1971-11-16 |
| GB1237854A (en) | 1971-06-30 |
| CH514968A (de) | 1971-10-31 |
| DE1762897B2 (de) | 1971-06-03 |
| DK137879C (da) | 1978-10-23 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |