CA420149A - Mask exhalation valve - Google Patents
Mask exhalation valveInfo
- Publication number
- CA420149A CA420149A CA420149A CA420149DA CA420149A CA 420149 A CA420149 A CA 420149A CA 420149 A CA420149 A CA 420149A CA 420149D A CA420149D A CA 420149DA CA 420149 A CA420149 A CA 420149A
- Authority
- CA
- Canada
- Prior art keywords
- exhalation valve
- mask exhalation
- mask
- valve
- exhalation
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA420149T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA420149A true CA420149A (en) | 1944-05-09 |
Family
ID=35531072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA420149A Expired CA420149A (en) | Mask exhalation valve |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA420149A (en) |
-
0
- CA CA420149A patent/CA420149A/en not_active Expired
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