JPH0485942U - - Google Patents
Info
- Publication number
- JPH0485942U JPH0485942U JP12531890U JP12531890U JPH0485942U JP H0485942 U JPH0485942 U JP H0485942U JP 12531890 U JP12531890 U JP 12531890U JP 12531890 U JP12531890 U JP 12531890U JP H0485942 U JPH0485942 U JP H0485942U
- Authority
- JP
- Japan
- Prior art keywords
- handset
- noise
- ventilation hole
- transmitter
- earpiece
- 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
- 238000009423 ventilation Methods 0.000 claims 8
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Telephone Set Structure (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12531890U JPH0485942U (cs) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12531890U JPH0485942U (cs) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485942U true JPH0485942U (cs) | 1992-07-27 |
Family
ID=31872921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12531890U Pending JPH0485942U (cs) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485942U (cs) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62203452A (ja) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | 騒音防止形送話器 |
| JPS645550B2 (cs) * | 1980-06-24 | 1989-01-31 | Nippon Shashin Insatsu Kk |
-
1990
- 1990-11-29 JP JP12531890U patent/JPH0485942U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS645550B2 (cs) * | 1980-06-24 | 1989-01-31 | Nippon Shashin Insatsu Kk | |
| JPS62203452A (ja) * | 1986-03-04 | 1987-09-08 | Tamura Electric Works Ltd | 騒音防止形送話器 |
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