FR50979E - Gas filter - Google Patents
Gas filterInfo
- Publication number
- FR50979E FR50979E FR50979DA FR50979E FR 50979 E FR50979 E FR 50979E FR 50979D A FR50979D A FR 50979DA FR 50979 E FR50979 E FR 50979E
- Authority
- FR
- France
- Prior art keywords
- gas filter
- filter
- gas
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR50979T | 1939-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR50979E true FR50979E (en) | 1941-05-19 |
Family
ID=8685911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR50979D Expired FR50979E (en) | 1939-03-07 | 1939-03-07 | Gas filter |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR50979E (en) |
-
1939
- 1939-03-07 FR FR50979D patent/FR50979E/en not_active Expired
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