BE687041A - - Google Patents
Info
- Publication number
- BE687041A BE687041A BE687041DA BE687041A BE 687041 A BE687041 A BE 687041A BE 687041D A BE687041D A BE 687041DA BE 687041 A BE687041 A BE 687041A
- 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)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US48915265A | 1965-09-22 | 1965-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE687041A true BE687041A (h) | 1967-03-20 |
Family
ID=23942625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE687041D BE687041A (h) | 1965-09-22 | 1966-09-19 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3440356A (h) |
| BE (1) | BE687041A (h) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL245570A (h) * | 1958-12-29 | |||
| DE1188662B (de) * | 1963-07-11 | 1965-03-11 | Standard Elektrik Lorenz Ag | Ausgleichsnetzwerk fuer Fernsprech-Teilnehmerstationen |
-
1965
- 1965-09-22 US US489152A patent/US3440356A/en not_active Expired - Lifetime
-
1966
- 1966-09-19 BE BE687041D patent/BE687041A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US3440356A (en) | 1969-04-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: AUTOMATIC ELECTRIC LABORATORIES INC. Effective date: 19850930 |