JPH0336247U - - Google Patents
Info
- Publication number
- JPH0336247U JPH0336247U JP9755589U JP9755589U JPH0336247U JP H0336247 U JPH0336247 U JP H0336247U JP 9755589 U JP9755589 U JP 9755589U JP 9755589 U JP9755589 U JP 9755589U JP H0336247 U JPH0336247 U JP H0336247U
- Authority
- JP
- Japan
- Prior art keywords
- earphone
- pair
- microphone
- amplifier
- line
- 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
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Telephone Set Structure (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9755589U JPH0336247U (de) | 1989-08-21 | 1989-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9755589U JPH0336247U (de) | 1989-08-21 | 1989-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0336247U true JPH0336247U (de) | 1991-04-09 |
Family
ID=31646692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9755589U Pending JPH0336247U (de) | 1989-08-21 | 1989-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0336247U (de) |
-
1989
- 1989-08-21 JP JP9755589U patent/JPH0336247U/ja active Pending
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