SE7414700L - - Google Patents
Info
- Publication number
- SE7414700L SE7414700L SE7414700A SE7414700A SE7414700L SE 7414700 L SE7414700 L SE 7414700L SE 7414700 A SE7414700 A SE 7414700A SE 7414700 A SE7414700 A SE 7414700A SE 7414700 L SE7414700 L SE 7414700L
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Thyristor Switches And Gates (AREA)
- Dc-Dc Converters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7341746A FR2252719B1 (fr) | 1973-11-23 | 1973-11-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7414700L true SE7414700L (fr) | 1975-05-26 |
Family
ID=9128163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7414700A SE7414700L (fr) | 1973-11-23 | 1974-11-22 |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE821373A (fr) |
| DE (1) | DE2455160A1 (fr) |
| FR (1) | FR2252719B1 (fr) |
| GB (1) | GB1484286A (fr) |
| IT (1) | IT1030794B (fr) |
| NL (1) | NL7415085A (fr) |
| SE (1) | SE7414700L (fr) |
-
1973
- 1973-11-23 FR FR7341746A patent/FR2252719B1/fr not_active Expired
-
1974
- 1974-10-23 BE BE149788A patent/BE821373A/fr unknown
- 1974-11-13 IT IT29388/74A patent/IT1030794B/it active
- 1974-11-19 NL NL7415085A patent/NL7415085A/xx not_active Application Discontinuation
- 1974-11-21 DE DE19742455160 patent/DE2455160A1/de not_active Withdrawn
- 1974-11-22 SE SE7414700A patent/SE7414700L/xx unknown
- 1974-11-22 GB GB50686/74A patent/GB1484286A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1030794B (it) | 1979-04-10 |
| FR2252719B1 (fr) | 1978-12-01 |
| FR2252719A1 (fr) | 1975-06-20 |
| GB1484286A (en) | 1977-09-01 |
| NL7415085A (nl) | 1975-05-27 |
| BE821373A (fr) | 1975-04-23 |
| DE2455160A1 (de) | 1975-05-28 |