CS175494B2 - - Google Patents
Info
- Publication number
- CS175494B2 CS175494B2 CS134575A CS134575A CS175494B2 CS 175494 B2 CS175494 B2 CS 175494B2 CS 134575 A CS134575 A CS 134575A CS 134575 A CS134575 A CS 134575A CS 175494 B2 CS175494 B2 CS 175494B2
- Authority
- CS
- Czechoslovakia
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HU74EE00002221A HU171737B (hu) | 1974-03-06 | 1974-03-06 | Upravljaemaja rech'ju avtomaticheskaja rechevaja ehlektroskhema |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS175494B2 true CS175494B2 (https=) | 1977-05-31 |
Family
ID=10995548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS134575A CS175494B2 (https=) | 1974-03-06 | 1975-02-28 |
Country Status (4)
| Country | Link |
|---|---|
| CS (1) | CS175494B2 (https=) |
| DE (1) | DE2505811C3 (https=) |
| HU (1) | HU171737B (https=) |
| SU (1) | SU553950A3 (https=) |
-
1974
- 1974-03-06 HU HU74EE00002221A patent/HU171737B/hu not_active IP Right Cessation
-
1975
- 1975-02-12 DE DE19752505811 patent/DE2505811C3/de not_active Expired
- 1975-02-28 CS CS134575A patent/CS175494B2/cs unknown
- 1975-03-05 SU SU2110331A patent/SU553950A3/ru active
Also Published As
| Publication number | Publication date |
|---|---|
| HU171737B (hu) | 1978-03-28 |
| DE2505811C3 (de) | 1978-10-05 |
| SU553950A3 (ru) | 1977-04-05 |
| DE2505811A1 (de) | 1975-09-11 |
| DE2505811B2 (de) | 1978-02-02 |