JPS5420898Y2 - - Google Patents
Info
- Publication number
- JPS5420898Y2 JPS5420898Y2 JP1975038589U JP3858975U JPS5420898Y2 JP S5420898 Y2 JPS5420898 Y2 JP S5420898Y2 JP 1975038589 U JP1975038589 U JP 1975038589U JP 3858975 U JP3858975 U JP 3858975U JP S5420898 Y2 JPS5420898 Y2 JP S5420898Y2
- 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.)
- Expired
Links
Landscapes
- Telephone Set Structure (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Transceivers (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975038589U JPS5420898Y2 (it) | 1975-03-22 | 1975-03-22 | |
| US05/789,606 US4150262A (en) | 1974-11-18 | 1977-04-21 | Piezoelectric bone conductive in ear voice sounds transmitting and receiving apparatus |
| DE2849152A DE2849152C2 (de) | 1974-11-18 | 1978-11-13 | Vorrichtung zur Übermittlung und zum Empfang von Sprache, insbesondere in geräuschvoller Umgebung |
| FR7832130A FR2441983A1 (fr) | 1974-11-18 | 1978-11-14 | Dispositif de transmission et reception de sons vocaux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1975038589U JPS5420898Y2 (it) | 1975-03-22 | 1975-03-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS51121409U JPS51121409U (it) | 1976-10-01 |
| JPS5420898Y2 true JPS5420898Y2 (it) | 1979-07-26 |
Family
ID=28160858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1975038589U Expired JPS5420898Y2 (it) | 1974-11-18 | 1975-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5420898Y2 (it) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58210793A (ja) * | 1982-06-01 | 1983-12-08 | Katsuo Motoi | 外耳道内双方向通話装置 |
| JPS58188995A (ja) * | 1982-04-27 | 1983-11-04 | Katsuo Motoi | イヤ−マイクロホン |
| JP6216018B2 (ja) * | 2016-10-05 | 2017-10-18 | 株式会社ファインウェル | 携帯電話 |
-
1975
- 1975-03-22 JP JP1975038589U patent/JPS5420898Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51121409U (it) | 1976-10-01 |