CS154693B2 - - Google Patents
Info
- Publication number
- CS154693B2 CS154693B2 CS431971A CS431971A CS154693B2 CS 154693 B2 CS154693 B2 CS 154693B2 CS 431971 A CS431971 A CS 431971A CS 431971 A CS431971 A CS 431971A CS 154693 B2 CS154693 B2 CS 154693B2
- Authority
- CS
- Czechoslovakia
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Push-Button Switches (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD14810870 | 1970-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS154693B2 true CS154693B2 (forum.php) | 1974-04-30 |
Family
ID=5482603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS431971A CS154693B2 (forum.php) | 1970-06-12 | 1971-06-11 |
Country Status (5)
| Country | Link |
|---|---|
| BG (1) | BG22048A1 (forum.php) |
| CS (1) | CS154693B2 (forum.php) |
| DE (1) | DE2120121A1 (forum.php) |
| HU (1) | HU162595B (forum.php) |
| SU (1) | SU496693A1 (forum.php) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT972200B (it) * | 1972-10-16 | 1974-05-20 | Sits Soc It Telecom Siemens | Tastiera per un dispositivo di se lezione per sistemi di telecomuni cazioni |
| USRE30923E (en) | 1973-01-02 | 1982-05-04 | Bowmar Instrument Corporation | Calculator keyboard switch with disc spring contact and printed circuit board |
-
1971
- 1971-04-24 DE DE19712120121 patent/DE2120121A1/de active Pending
- 1971-05-05 BG BG1747671A patent/BG22048A1/xx unknown
- 1971-05-31 SU SU1661179A patent/SU496693A1/ru active
- 1971-06-11 CS CS431971A patent/CS154693B2/cs unknown
- 1971-06-11 HU HUII000063 patent/HU162595B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HU162595B (forum.php) | 1973-03-28 |
| DE2120121A1 (de) | 1971-12-30 |
| BG22048A1 (forum.php) | 1976-11-25 |
| SU496693A1 (ru) | 1975-12-25 |