JPS61118350U - - Google Patents
Info
- Publication number
- JPS61118350U JPS61118350U JP52585U JP52585U JPS61118350U JP S61118350 U JPS61118350 U JP S61118350U JP 52585 U JP52585 U JP 52585U JP 52585 U JP52585 U JP 52585U JP S61118350 U JPS61118350 U JP S61118350U
- Authority
- JP
- Japan
- Prior art keywords
- mask
- ventilation plate
- working
- mask ventilation
- wearer
- 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
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985000525U JPH0517075Y2 (2) | 1985-01-09 | 1985-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985000525U JPH0517075Y2 (2) | 1985-01-09 | 1985-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61118350U true JPS61118350U (2) | 1986-07-25 |
| JPH0517075Y2 JPH0517075Y2 (2) | 1993-05-07 |
Family
ID=30472450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985000525U Expired - Lifetime JPH0517075Y2 (2) | 1985-01-09 | 1985-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0517075Y2 (2) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614836U (2) * | 1979-07-12 | 1981-02-07 |
-
1985
- 1985-01-09 JP JP1985000525U patent/JPH0517075Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614836U (2) * | 1979-07-12 | 1981-02-07 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0517075Y2 (2) | 1993-05-07 |
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