SE304316B - - Google Patents
Info
- Publication number
- SE304316B SE304316B SE2483/65A SE248365A SE304316B SE 304316 B SE304316 B SE 304316B SE 2483/65 A SE2483/65 A SE 2483/65A SE 248365 A SE248365 A SE 248365A SE 304316 B SE304316 B SE 304316B
- Authority
- SE
- Sweden
Links
Classifications
-
- 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
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2483/65A SE304316B (cs) | 1965-02-26 | 1965-02-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE2483/65A SE304316B (cs) | 1965-02-26 | 1965-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE304316B true SE304316B (cs) | 1968-09-23 |
Family
ID=20260044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE2483/65A SE304316B (cs) | 1965-02-26 | 1965-02-26 |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE304316B (cs) |
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1965
- 1965-02-26 SE SE2483/65A patent/SE304316B/xx unknown