BE717582A - - Google Patents
Info
- Publication number
- BE717582A BE717582A BE717582DA BE717582A BE 717582 A BE717582 A BE 717582A BE 717582D A BE717582D A BE 717582DA BE 717582 A BE717582 A BE 717582A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR113113A FR1537781A (fr) | 1967-07-05 | 1967-07-05 | Dispositif détecteur d'incidents sur ligne ou câble bifilaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE717582A true BE717582A (en:Method) | 1968-12-16 |
Family
ID=8634477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE717582D BE717582A (en:Method) | 1967-07-05 | 1968-07-04 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE717582A (en:Method) |
| DE (1) | DE1763618A1 (en:Method) |
| FR (1) | FR1537781A (en:Method) |
| GB (1) | GB1250766A (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2364462A1 (fr) * | 1976-09-10 | 1978-04-07 | Gravejat Bernard | Dispositif pour le controle permanent de lignes a deux conducteurs |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2208052B (en) * | 1987-08-14 | 1991-08-07 | B & R Electrical Prod Ltd | Improvements in or related to circuit breakers used with electrical apparatus |
| US7684167B2 (en) | 2003-09-30 | 2010-03-23 | Fisher-Rosemount Systems, Inc. | Communication bus suitable for use in a hazardous area of a process plant |
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1967
- 1967-07-05 FR FR113113A patent/FR1537781A/fr not_active Expired
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1968
- 1968-07-02 GB GB1250766D patent/GB1250766A/en not_active Expired
- 1968-07-04 DE DE19681763618 patent/DE1763618A1/de not_active Ceased
- 1968-07-04 BE BE717582D patent/BE717582A/xx not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2364462A1 (fr) * | 1976-09-10 | 1978-04-07 | Gravejat Bernard | Dispositif pour le controle permanent de lignes a deux conducteurs |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1763618A1 (de) | 1971-11-18 |
| FR1537781A (fr) | 1968-08-30 |
| GB1250766A (en:Method) | 1971-10-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SOC. D' ELECTRONIQUE ET D'AUTOMATISME Effective date: 19840704 |