JPS59183082U - ヘルメツト用音響装置 - Google Patents
ヘルメツト用音響装置Info
- Publication number
- JPS59183082U JPS59183082U JP7605083U JP7605083U JPS59183082U JP S59183082 U JPS59183082 U JP S59183082U JP 7605083 U JP7605083 U JP 7605083U JP 7605083 U JP7605083 U JP 7605083U JP S59183082 U JPS59183082 U JP S59183082U
- Authority
- JP
- Japan
- Prior art keywords
- helmet
- sounds
- acoustic device
- collecting device
- sound collecting
- 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.)
- Granted
Links
Landscapes
- Helmets And Other Head Coverings (AREA)
- Headphones And Earphones (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7605083U JPS59183082U (ja) | 1983-05-23 | 1983-05-23 | ヘルメツト用音響装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7605083U JPS59183082U (ja) | 1983-05-23 | 1983-05-23 | ヘルメツト用音響装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59183082U true JPS59183082U (ja) | 1984-12-06 |
JPH0139033Y2 JPH0139033Y2 (fi) | 1989-11-21 |
Family
ID=30206102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7605083U Granted JPS59183082U (ja) | 1983-05-23 | 1983-05-23 | ヘルメツト用音響装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59183082U (fi) |
-
1983
- 1983-05-23 JP JP7605083U patent/JPS59183082U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0139033Y2 (fi) | 1989-11-21 |
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