JPH0181092U - - Google Patents
Info
- Publication number
- JPH0181092U JPH0181092U JP1987177086U JP17708687U JPH0181092U JP H0181092 U JPH0181092 U JP H0181092U JP 1987177086 U JP1987177086 U JP 1987177086U JP 17708687 U JP17708687 U JP 17708687U JP H0181092 U JPH0181092 U JP H0181092U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- hole
- earphone
- casing
- microphone
- 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
Landscapes
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987177086U JPH0181092U (en]) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987177086U JPH0181092U (en]) | 1987-11-20 | 1987-11-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0181092U true JPH0181092U (en]) | 1989-05-31 |
Family
ID=31468765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987177086U Pending JPH0181092U (en]) | 1987-11-20 | 1987-11-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0181092U (en]) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58188996A (ja) * | 1982-04-27 | 1983-11-04 | Katsuo Motoi | 外耳道内双方向通話装置 |
-
1987
- 1987-11-20 JP JP1987177086U patent/JPH0181092U/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58188996A (ja) * | 1982-04-27 | 1983-11-04 | Katsuo Motoi | 外耳道内双方向通話装置 |
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