JPS62183863U - - Google Patents
Info
- Publication number
- JPS62183863U JPS62183863U JP7231886U JP7231886U JPS62183863U JP S62183863 U JPS62183863 U JP S62183863U JP 7231886 U JP7231886 U JP 7231886U JP 7231886 U JP7231886 U JP 7231886U JP S62183863 U JPS62183863 U JP S62183863U
- Authority
- JP
- Japan
- Prior art keywords
- loudspeaker
- gas mask
- port
- microphone
- speaker
- 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
- 239000007789 gas Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7231886U JPS62183863U (enExample) | 1986-05-13 | 1986-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7231886U JPS62183863U (enExample) | 1986-05-13 | 1986-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62183863U true JPS62183863U (enExample) | 1987-11-21 |
Family
ID=30915672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7231886U Pending JPS62183863U (enExample) | 1986-05-13 | 1986-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62183863U (enExample) |
-
1986
- 1986-05-13 JP JP7231886U patent/JPS62183863U/ja active Pending