FR1573725A - - Google Patents
Info
- Publication number
- FR1573725A FR1573725A FR1573725DA FR1573725A FR 1573725 A FR1573725 A FR 1573725A FR 1573725D A FR1573725D A FR 1573725DA FR 1573725 A FR1573725 A FR 1573725A
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/003—Arrangements for compensation of the DC flux in line transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Filters And Equalizers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1175580A SU356813A1 (enExample) | 1967-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1573725A true FR1573725A (enExample) | 1969-07-04 |
Family
ID=20440972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1573725D Expired FR1573725A (enExample) | 1967-07-27 | 1968-07-25 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3602652A (enExample) |
| BE (1) | BE718354A (enExample) |
| DE (1) | DE1762607A1 (enExample) |
| FR (1) | FR1573725A (enExample) |
| GB (1) | GB1237404A (enExample) |
| NL (1) | NL6810668A (enExample) |
| SE (1) | SE354759B (enExample) |
-
1968
- 1968-07-18 DE DE19681762607 patent/DE1762607A1/de active Pending
- 1968-07-19 BE BE718354D patent/BE718354A/xx unknown
- 1968-07-22 US US746388A patent/US3602652A/en not_active Expired - Lifetime
- 1968-07-23 GB GB35084/68A patent/GB1237404A/en not_active Expired
- 1968-07-25 FR FR1573725D patent/FR1573725A/fr not_active Expired
- 1968-07-26 NL NL6810668A patent/NL6810668A/xx unknown
- 1968-07-26 SE SE10244/68A patent/SE354759B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1762607A1 (de) | 1970-10-01 |
| SE354759B (enExample) | 1973-03-19 |
| BE718354A (enExample) | 1969-01-20 |
| NL6810668A (enExample) | 1969-01-29 |
| US3602652A (en) | 1971-08-31 |
| GB1237404A (en) | 1971-06-30 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |