JPS643269Y2 - - Google Patents
Info
- Publication number
- JPS643269Y2 JPS643269Y2 JP4217882U JP4217882U JPS643269Y2 JP S643269 Y2 JPS643269 Y2 JP S643269Y2 JP 4217882 U JP4217882 U JP 4217882U JP 4217882 U JP4217882 U JP 4217882U JP S643269 Y2 JPS643269 Y2 JP S643269Y2
- Authority
- JP
- Japan
- Prior art keywords
- helmet
- microphone
- present
- full
- center 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.)
- Expired
Links
- 239000000463 material Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217882U JPS58144986U (ja) | 1982-03-25 | 1982-03-25 | ヘルメツト用マイクロフオン |
| US06/477,926 US4517417A (en) | 1982-03-25 | 1983-03-23 | Communication system for a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4217882U JPS58144986U (ja) | 1982-03-25 | 1982-03-25 | ヘルメツト用マイクロフオン |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58144986U JPS58144986U (ja) | 1983-09-29 |
| JPS643269Y2 true JPS643269Y2 (en]) | 1989-01-27 |
Family
ID=30053318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4217882U Granted JPS58144986U (ja) | 1982-03-25 | 1982-03-25 | ヘルメツト用マイクロフオン |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58144986U (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001119798A (ja) * | 1999-10-15 | 2001-04-27 | Kenwood Corp | 通信用ヘルメット |
| GB0609416D0 (en) * | 2006-05-12 | 2006-06-21 | Audiogravity Holdings Ltd | Wind noise rejection apparatus |
-
1982
- 1982-03-25 JP JP4217882U patent/JPS58144986U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58144986U (ja) | 1983-09-29 |
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