JPH0412739U - - Google Patents
Info
- Publication number
- JPH0412739U JPH0412739U JP5378290U JP5378290U JPH0412739U JP H0412739 U JPH0412739 U JP H0412739U JP 5378290 U JP5378290 U JP 5378290U JP 5378290 U JP5378290 U JP 5378290U JP H0412739 U JPH0412739 U JP H0412739U
- Authority
- JP
- Japan
- Prior art keywords
- handset
- piezoelectric
- cover
- ring
- shaped protrusion
- Prior art date
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims 2
- 238000013016 damping Methods 0.000 claims 2
- 239000002184 metal Substances 0.000 claims 2
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5378290U JPH0412739U (fr) | 1990-05-23 | 1990-05-23 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5378290U JPH0412739U (fr) | 1990-05-23 | 1990-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0412739U true JPH0412739U (fr) | 1992-01-31 |
Family
ID=31575268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5378290U Pending JPH0412739U (fr) | 1990-05-23 | 1990-05-23 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0412739U (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS647750A (en) * | 1987-06-30 | 1989-01-11 | Tamura Electric Works Ltd | Piezo-electric ceramic type transmitter |
JPH01221967A (ja) * | 1988-03-01 | 1989-09-05 | Matsushita Electric Ind Co Ltd | 電話用送受話器 |
-
1990
- 1990-05-23 JP JP5378290U patent/JPH0412739U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS647750A (en) * | 1987-06-30 | 1989-01-11 | Tamura Electric Works Ltd | Piezo-electric ceramic type transmitter |
JPH01221967A (ja) * | 1988-03-01 | 1989-09-05 | Matsushita Electric Ind Co Ltd | 電話用送受話器 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2134884A1 (fr) | Microphone d'oreille directif | |
JPH03130700U (fr) | ||
JPH0412739U (fr) | ||
JPS58184995U (ja) | 圧電形電気音響変換器 | |
JPH073744Y2 (ja) | 接触マイクロホン | |
JPS6314547Y2 (fr) | ||
JPS6413900U (fr) | ||
JPS62196495U (fr) | ||
JPS58153490A (ja) | マイクロホン | |
JPS5813678Y2 (ja) | 単一指向性エレクトレツトマイクロホン | |
JPH01132158U (fr) | ||
JPS6126355U (ja) | 電話機用送話ユニツト取付構造 | |
JPH01133846U (fr) | ||
JPH01133848U (fr) | ||
JPS6093391U (ja) | 送話器 | |
GB1348734A (en) | Elecgro-acoustical transducers | |
JPH0284460U (fr) | ||
JPH01132157U (fr) | ||
JPS6392499U (fr) | ||
JPS61162197U (fr) | ||
JPS6035698U (ja) | 圧電形電気音響変換器 | |
JPS6242358U (fr) | ||
JPS6387994U (fr) | ||
JPH07123496A (ja) | 振動変換器 | |
JPS61162198U (fr) |