CA291549A - Air mask - Google Patents
Air maskInfo
- Publication number
- CA291549A CA291549A CA291549A CA291549DA CA291549A CA 291549 A CA291549 A CA 291549A CA 291549 A CA291549 A CA 291549A CA 291549D A CA291549D A CA 291549DA CA 291549 A CA291549 A CA 291549A
- Authority
- CA
- Canada
- Prior art keywords
- air mask
- mask
- air
- 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 |
---|---|---|---|
CA291549T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA291549A true CA291549A (en) | 1929-07-23 |
Family
ID=35228361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA291549A Expired CA291549A (en) | Air mask |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA291549A (en) |
-
0
- CA CA291549A patent/CA291549A/en not_active Expired
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