JPS646967U - - Google Patents
Info
- Publication number
- JPS646967U JPS646967U JP10225487U JP10225487U JPS646967U JP S646967 U JPS646967 U JP S646967U JP 10225487 U JP10225487 U JP 10225487U JP 10225487 U JP10225487 U JP 10225487U JP S646967 U JPS646967 U JP S646967U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- bag
- dust mask
- mask according
- dust
- 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
- 239000000428 dust Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 4
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225487U JPH0620544Y2 (ja) | 1987-07-02 | 1987-07-02 | 防塵マスク用フィルタ− |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225487U JPH0620544Y2 (ja) | 1987-07-02 | 1987-07-02 | 防塵マスク用フィルタ− |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS646967U true JPS646967U (cs) | 1989-01-17 |
| JPH0620544Y2 JPH0620544Y2 (ja) | 1994-06-01 |
Family
ID=31331996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10225487U Expired - Lifetime JPH0620544Y2 (ja) | 1987-07-02 | 1987-07-02 | 防塵マスク用フィルタ− |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620544Y2 (cs) |
-
1987
- 1987-07-02 JP JP10225487U patent/JPH0620544Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620544Y2 (ja) | 1994-06-01 |