FR950171A - Disposition pour les installations de télécommunications - Google Patents
Disposition pour les installations de télécommunicationsInfo
- Publication number
- FR950171A FR950171A FR950171DA FR950171A FR 950171 A FR950171 A FR 950171A FR 950171D A FR950171D A FR 950171DA FR 950171 A FR950171 A FR 950171A
- Authority
- FR
- France
- Prior art keywords
- provision
- telecommunications facilities
- telecommunications
- facilities
- Prior art date
- 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
- H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/38—Pulses transmitted by a movement variably limited by the setting of a stop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH950171X | 1946-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR950171A true FR950171A (fr) | 1949-09-20 |
Family
ID=4550008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR950171D Expired FR950171A (fr) | 1946-07-26 | 1947-07-25 | Disposition pour les installations de télécommunications |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE475422A (fr) |
| CH (1) | CH264145A (fr) |
| FR (1) | FR950171A (fr) |
-
1946
- 1946-07-26 CH CH264145D patent/CH264145A/de unknown
-
1947
- 1947-07-25 FR FR950171D patent/FR950171A/fr not_active Expired
-
1949
- 1949-08-14 BE BE475422A patent/BE475422A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH264145A (de) | 1949-09-30 |
| BE475422A (fr) | 1947-09-20 |
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