JPH01135957U - - Google Patents
Info
- Publication number
- JPH01135957U JPH01135957U JP3179288U JP3179288U JPH01135957U JP H01135957 U JPH01135957 U JP H01135957U JP 3179288 U JP3179288 U JP 3179288U JP 3179288 U JP3179288 U JP 3179288U JP H01135957 U JPH01135957 U JP H01135957U
- Authority
- JP
- Japan
- Prior art keywords
- whistle
- exhausted
- switching
- utility
- scope
- 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
- 239000000428 dust Substances 0.000 claims 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3179288U JPH01135957U (pt) | 1988-03-10 | 1988-03-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3179288U JPH01135957U (pt) | 1988-03-10 | 1988-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01135957U true JPH01135957U (pt) | 1989-09-18 |
Family
ID=31257912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3179288U Pending JPH01135957U (pt) | 1988-03-10 | 1988-03-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01135957U (pt) |
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1988
- 1988-03-10 JP JP3179288U patent/JPH01135957U/ja active Pending