BE575422A - - Google Patents
Info
- Publication number
- BE575422A BE575422A BE575422A BE575422A BE575422A BE 575422 A BE575422 A BE 575422A BE 575422 A BE575422 A BE 575422A BE 575422 A BE575422 A BE 575422A BE 575422 A BE575422 A BE 575422A
- Authority
- BE
- Belgium
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
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- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB575422X | 1956-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE575422A true BE575422A (fr) | 1959-02-28 |
Family
ID=65014011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE575422A BE575422A (fr) | 1956-02-25 | 1959-02-05 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE575422A (fr) |
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1959
- 1959-02-05 BE BE575422A patent/BE575422A/fr unknown