BE481596A - - Google Patents
Info
- Publication number
- BE481596A BE481596A BE481596DA BE481596A BE 481596 A BE481596 A BE 481596A BE 481596D A BE481596D A BE 481596DA BE 481596 A BE481596 A BE 481596A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR837124X | 1947-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE481596A true BE481596A (https=) |
Family
ID=9298446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE481596D BE481596A (https=) | 1947-06-26 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2594007A (https=) |
| BE (1) | BE481596A (https=) |
| CH (1) | CH270998A (https=) |
| DE (1) | DE837124C (https=) |
| FR (1) | FR1005275A (https=) |
| GB (1) | GB668369A (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1098648A (fr) * | 1954-01-22 | 1955-08-16 | Lignes Telegraph Telephon | Dispositif de réception de signaux télégraphiques |
| US2994741A (en) * | 1957-12-19 | 1961-08-01 | Kallsson Bengt Erik Lennart | Signal transmitting repeater |
| NL287044A (https=) * | 1961-12-21 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1510676A (en) * | 1918-02-01 | 1924-10-07 | Western Electric Co | Repeater circuits |
| US1665698A (en) * | 1923-01-26 | 1928-04-10 | Western Electric Co | Electric-current transmission |
| US2016261A (en) * | 1934-03-09 | 1935-10-01 | Western Union Telegraph Co | Telegraph system |
| US2124848A (en) * | 1935-09-11 | 1938-07-26 | Gen Railway Signal Co | Polar impulse repeater system |
-
0
- BE BE481596D patent/BE481596A/xx unknown
-
1947
- 1947-06-26 FR FR1005275D patent/FR1005275A/fr not_active Expired
-
1948
- 1948-03-30 CH CH270998D patent/CH270998A/fr unknown
- 1948-04-15 GB GB10488/48A patent/GB668369A/en not_active Expired
- 1948-06-04 US US31084A patent/US2594007A/en not_active Expired - Lifetime
-
1950
- 1950-10-03 DE DEC3130A patent/DE837124C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH270998A (fr) | 1950-09-30 |
| US2594007A (en) | 1952-04-22 |
| GB668369A (en) | 1952-03-19 |
| DE837124C (de) | 1952-04-21 |
| FR1005275A (fr) | 1952-04-08 |