BE562469A - - Google Patents
Info
- Publication number
- BE562469A BE562469A BE562469DA BE562469A BE 562469 A BE562469 A BE 562469A BE 562469D A BE562469D A BE 562469DA BE 562469 A BE562469 A BE 562469A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/76—Compensating for differences in line impedance
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US358833XA | 1956-11-28 | 1956-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE562469A true BE562469A (en) |
Family
ID=21885349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE562469D BE562469A (en) | 1956-11-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE562469A (en) |
| CH (1) | CH358833A (en) |
| DE (1) | DE1089418B (en) |
| FR (1) | FR1188597A (en) |
| GB (1) | GB849530A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3126454A (en) * | 1959-08-31 | 1964-03-24 | Telephone instrument | |
| NL271742A (en) * | 1960-11-24 | |||
| NL271741A (en) * | 1960-11-24 | |||
| NL271744A (en) * | 1960-11-24 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE678028C (en) * | 1931-10-05 | 1939-07-07 | Stabilovolt G M B H | Circuit for electron tubes to decrease a negative grid bias |
| AT193438B (en) * | 1955-11-03 | 1957-11-25 | Kapsch Telephon Telegraph | Telephone station with amplifier |
-
0
- BE BE562469D patent/BE562469A/xx unknown
-
1957
- 1957-11-15 GB GB35707/57A patent/GB849530A/en not_active Expired
- 1957-11-15 CH CH358833D patent/CH358833A/en unknown
- 1957-11-16 FR FR1188597D patent/FR1188597A/en not_active Expired
- 1957-11-22 DE DEG23409A patent/DE1089418B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB849530A (en) | 1960-09-28 |
| DE1089418B (en) | 1960-09-22 |
| CH358833A (en) | 1961-12-15 |
| FR1188597A (en) | 1959-09-23 |