BE470204A - - Google Patents
Info
- Publication number
- BE470204A BE470204A BE470204DA BE470204A BE 470204 A BE470204 A BE 470204A BE 470204D A BE470204D A BE 470204DA BE 470204 A BE470204 A BE 470204A
- Authority
- BE
- Belgium
- Prior art keywords
- emi
- point
- air jets
- causing vortices
- jets causing
- Prior art date
Links
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)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE454311T | 1944-02-07 | ||
| BE470204T | 1946-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE470204A true BE470204A (pm) | 1947-01-31 |
Family
ID=120438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE470204D BE470204A (pm) | 1944-02-07 | 1946-12-30 |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE470204A (pm) |
-
1946
- 1946-12-30 BE BE470204D patent/BE470204A/fr unknown
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