JPS50124508A - - Google Patents
Info
- Publication number
- JPS50124508A JPS50124508A JP49028481A JP2848174A JPS50124508A JP S50124508 A JPS50124508 A JP S50124508A JP 49028481 A JP49028481 A JP 49028481A JP 2848174 A JP2848174 A JP 2848174A JP S50124508 A JPS50124508 A JP S50124508A
- 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
- Transceivers (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16580173A | 1973-03-12 | 1973-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50124508A true JPS50124508A (enExample) | 1975-09-30 |
| JPS557987B2 JPS557987B2 (enExample) | 1980-02-29 |
Family
ID=22600538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2848174A Expired JPS557987B2 (enExample) | 1973-03-12 | 1974-03-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS557987B2 (enExample) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114305A (en) * | 1977-03-16 | 1978-10-05 | Nitsuko Ltd | Loudspeaking telephone set |
| JPS544003A (en) * | 1977-06-10 | 1979-01-12 | Matsushita Electric Ind Co Ltd | Mutual communication unit of loud type |
| JPS5461404A (en) * | 1977-10-25 | 1979-05-17 | Nec Corp | Adaptive signal detector |
| JPS5474603A (en) * | 1977-11-28 | 1979-06-14 | Iwatsu Electric Co Ltd | Audio switch unit |
| JPS5660349U (enExample) * | 1980-10-16 | 1981-05-22 | ||
| JPS5797262A (en) * | 1980-12-09 | 1982-06-16 | Nippon Telegr & Teleph Corp <Ntt> | Loud speaker telephone set system |
| JPS63110854A (ja) * | 1986-10-29 | 1988-05-16 | Matsushita Electric Ind Co Ltd | 電話機 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065062U (ja) * | 1983-10-14 | 1985-05-08 | 千葉 ヨシコ | 自動車座席用磁気シ−ト |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3050584A (en) * | 1958-12-24 | 1962-08-21 | American Telephone & Telegraph | Conference telephone apparatus |
-
1974
- 1974-03-12 JP JP2848174A patent/JPS557987B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3050584A (en) * | 1958-12-24 | 1962-08-21 | American Telephone & Telegraph | Conference telephone apparatus |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53114305A (en) * | 1977-03-16 | 1978-10-05 | Nitsuko Ltd | Loudspeaking telephone set |
| JPS544003A (en) * | 1977-06-10 | 1979-01-12 | Matsushita Electric Ind Co Ltd | Mutual communication unit of loud type |
| JPS5461404A (en) * | 1977-10-25 | 1979-05-17 | Nec Corp | Adaptive signal detector |
| JPS5474603A (en) * | 1977-11-28 | 1979-06-14 | Iwatsu Electric Co Ltd | Audio switch unit |
| JPS5660349U (enExample) * | 1980-10-16 | 1981-05-22 | ||
| JPS5797262A (en) * | 1980-12-09 | 1982-06-16 | Nippon Telegr & Teleph Corp <Ntt> | Loud speaker telephone set system |
| JPS63110854A (ja) * | 1986-10-29 | 1988-05-16 | Matsushita Electric Ind Co Ltd | 電話機 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS557987B2 (enExample) | 1980-02-29 |