FR882233A - Masque anti-poussières - Google Patents
Masque anti-poussièresInfo
- Publication number
- FR882233A FR882233A FR882233DA FR882233A FR 882233 A FR882233 A FR 882233A FR 882233D A FR882233D A FR 882233DA FR 882233 A FR882233 A FR 882233A
- Authority
- FR
- France
- Prior art keywords
- dust mask
- mask
- 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.)
- Expired
Links
- 239000000428 dust Substances 0.000 title 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/003—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort having means for creating a fresh air curtain
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE882233X | 1941-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR882233A true FR882233A (fr) | 1943-05-21 |
Family
ID=3883826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR882233D Expired FR882233A (fr) | 1941-05-10 | 1942-05-21 | Masque anti-poussières |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR882233A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686976A (en) * | 1984-11-28 | 1987-08-18 | Bakkila Charles A | Safety mask |
-
1942
- 1942-05-21 FR FR882233D patent/FR882233A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4686976A (en) * | 1984-11-28 | 1987-08-18 | Bakkila Charles A | Safety mask |
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