JPS63160820U - - Google Patents
Info
- Publication number
- JPS63160820U JPS63160820U JP5211287U JP5211287U JPS63160820U JP S63160820 U JPS63160820 U JP S63160820U JP 5211287 U JP5211287 U JP 5211287U JP 5211287 U JP5211287 U JP 5211287U JP S63160820 U JPS63160820 U JP S63160820U
- Authority
- JP
- Japan
- Prior art keywords
- recess
- mask
- protruding parts
- oval
- throat
- 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
- 239000000463 material Substances 0.000 claims 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5211287U JPH032268Y2 (cs) | 1987-04-08 | 1987-04-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5211287U JPH032268Y2 (cs) | 1987-04-08 | 1987-04-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63160820U true JPS63160820U (cs) | 1988-10-20 |
| JPH032268Y2 JPH032268Y2 (cs) | 1991-01-22 |
Family
ID=30876992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5211287U Expired JPH032268Y2 (cs) | 1987-04-08 | 1987-04-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032268Y2 (cs) |
-
1987
- 1987-04-08 JP JP5211287U patent/JPH032268Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH032268Y2 (cs) | 1991-01-22 |