JPS5220294Y2 - - Google Patents
Info
- Publication number
- JPS5220294Y2 JPS5220294Y2 JP1952374U JP1952374U JPS5220294Y2 JP S5220294 Y2 JPS5220294 Y2 JP S5220294Y2 JP 1952374 U JP1952374 U JP 1952374U JP 1952374 U JP1952374 U JP 1952374U JP S5220294 Y2 JPS5220294 Y2 JP S5220294Y2
- 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
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1952374U JPS5220294Y2 (de) | 1974-02-18 | 1974-02-18 | |
| US05/549,339 US3976897A (en) | 1974-02-18 | 1975-02-12 | Piezoelectric electro-acoustic diaphragm transducer with composite resilient backing |
| DE2506708A DE2506708C2 (de) | 1974-02-18 | 1975-02-18 | Piezoelektrischer, elektroakustischer Wandler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1952374U JPS5220294Y2 (de) | 1974-02-18 | 1974-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50110235U JPS50110235U (de) | 1975-09-09 |
| JPS5220294Y2 true JPS5220294Y2 (de) | 1977-05-10 |
Family
ID=28107461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1952374U Expired JPS5220294Y2 (de) | 1974-02-18 | 1974-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5220294Y2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100642913B1 (ko) * | 2005-10-29 | 2006-11-10 | 드림 소닉 테크놀러지 리미티드 | 압전필름을 진동소자로 활용한 중저음 보강 박형 스피커 |
-
1974
- 1974-02-18 JP JP1952374U patent/JPS5220294Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS50110235U (de) | 1975-09-09 |