SE7404808L - - Google Patents
Info
- Publication number
- SE7404808L SE7404808L SE7404808A SE7404808A SE7404808L SE 7404808 L SE7404808 L SE 7404808L SE 7404808 A SE7404808 A SE 7404808A SE 7404808 A SE7404808 A SE 7404808A SE 7404808 L SE7404808 L SE 7404808L
- Authority
- SE
- Sweden
Links
Classifications
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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
- H04M1/312—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 pulses produced by electronic circuits
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH394075A CH583355A5 (en) | 1974-04-10 | 1975-03-27 | Insulated interlocked bent-edge sheet metal panel roof - with soft heat-insulating material pressed against underside, and raised edge sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7404808T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7404808L true SE7404808L (de) | 1974-10-11 |
Family
ID=43990901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7404808A SE7404808L (de) | 1974-04-10 | 1974-04-10 |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE7404808L (de) |
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1974
- 1974-04-10 SE SE7404808A patent/SE7404808L/xx unknown