JPS4830303A - - Google Patents
Info
- Publication number
- JPS4830303A JPS4830303A JP6298971A JP6298971A JPS4830303A JP S4830303 A JPS4830303 A JP S4830303A JP 6298971 A JP6298971 A JP 6298971A JP 6298971 A JP6298971 A JP 6298971A JP S4830303 A JPS4830303 A JP S4830303A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46062989A JPS5249682B2 (https=) | 1971-08-20 | 1971-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46062989A JPS5249682B2 (https=) | 1971-08-20 | 1971-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4830303A true JPS4830303A (https=) | 1973-04-21 |
| JPS5249682B2 JPS5249682B2 (https=) | 1977-12-19 |
Family
ID=13216269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP46062989A Expired JPS5249682B2 (https=) | 1971-08-20 | 1971-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5249682B2 (https=) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51135305A (en) * | 1975-05-19 | 1976-11-24 | Matsushita Electric Ind Co Ltd | Control block of telephone equipment for high voice |
| JPS5274705U (https=) * | 1975-12-02 | 1977-06-03 | ||
| JPS5267502A (en) * | 1975-12-03 | 1977-06-04 | Toshiba Corp | Hauling preventing unit |
| JPS53147407A (en) * | 1977-05-27 | 1978-12-22 | Nec Corp | Conference telephone set |
-
1971
- 1971-08-20 JP JP46062989A patent/JPS5249682B2/ja not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| THE BELL SYSTEM TECHNICAL JOURNAL=1960 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51135305A (en) * | 1975-05-19 | 1976-11-24 | Matsushita Electric Ind Co Ltd | Control block of telephone equipment for high voice |
| JPS5274705U (https=) * | 1975-12-02 | 1977-06-03 | ||
| JPS5267502A (en) * | 1975-12-03 | 1977-06-04 | Toshiba Corp | Hauling preventing unit |
| JPS53147407A (en) * | 1977-05-27 | 1978-12-22 | Nec Corp | Conference telephone set |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5249682B2 (https=) | 1977-12-19 |