JPS6428662U - - Google Patents
Info
- Publication number
- JPS6428662U JPS6428662U JP12214987U JP12214987U JPS6428662U JP S6428662 U JPS6428662 U JP S6428662U JP 12214987 U JP12214987 U JP 12214987U JP 12214987 U JP12214987 U JP 12214987U JP S6428662 U JPS6428662 U JP S6428662U
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- transparent
- covering
- dust mask
- utility
- 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 description 7
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12214987U JPS6428662U (en]) | 1987-08-11 | 1987-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12214987U JPS6428662U (en]) | 1987-08-11 | 1987-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6428662U true JPS6428662U (en]) | 1989-02-20 |
Family
ID=31369804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12214987U Pending JPS6428662U (en]) | 1987-08-11 | 1987-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6428662U (en]) |
-
1987
- 1987-08-11 JP JP12214987U patent/JPS6428662U/ja active Pending