BE722791A - - Google Patents
Info
- Publication number
- BE722791A BE722791A BE722791DA BE722791A BE 722791 A BE722791 A BE 722791A BE 722791D A BE722791D A BE 722791DA BE 722791 A BE722791 A BE 722791A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Telephone Function (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6714458A NL6714458A (xx) | 1967-10-25 | 1967-10-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE722791A true BE722791A (xx) | 1969-04-23 |
Family
ID=19801549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE722791D BE722791A (xx) | 1967-10-25 | 1968-10-23 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT284215B (xx) |
| BE (1) | BE722791A (xx) |
| DK (1) | DK126289B (xx) |
| FR (1) | FR1587239A (xx) |
| GB (1) | GB1241340A (xx) |
| NL (1) | NL6714458A (xx) |
| SE (1) | SE348350B (xx) |
-
1967
- 1967-10-25 NL NL6714458A patent/NL6714458A/xx unknown
-
1968
- 1968-10-22 DK DK508968A patent/DK126289B/da unknown
- 1968-10-22 SE SE1426768A patent/SE348350B/xx unknown
- 1968-10-22 AT AT1027868A patent/AT284215B/de not_active IP Right Cessation
- 1968-10-22 GB GB5001168A patent/GB1241340A/en not_active Expired
- 1968-10-23 BE BE722791D patent/BE722791A/xx unknown
- 1968-10-25 FR FR1587239D patent/FR1587239A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1587239A (xx) | 1970-03-13 |
| NL6714458A (xx) | 1969-04-29 |
| AT284215B (de) | 1970-09-10 |
| GB1241340A (en) | 1971-08-04 |
| DE1762953A1 (de) | 1970-12-03 |
| DE1762953B2 (de) | 1976-01-15 |
| DK126289B (da) | 1973-06-25 |
| SE348350B (xx) | 1972-08-28 |