CA728462A - Filter face mask - Google Patents
Filter face maskInfo
- Publication number
- CA728462A CA728462A CA728462A CA728462DA CA728462A CA 728462 A CA728462 A CA 728462A CA 728462 A CA728462 A CA 728462A CA 728462D A CA728462D A CA 728462DA CA 728462 A CA728462 A CA 728462A
- Authority
- CA
- Canada
- Prior art keywords
- face mask
- filter face
- filter
- mask
- face
- 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 |
---|---|---|---|
CA728462T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA728462A true CA728462A (en) | 1966-02-22 |
Family
ID=36067379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA728462A Expired CA728462A (en) | Filter face mask |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA728462A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4536440A (en) * | 1984-03-27 | 1985-08-20 | Minnesota Mining And Manufacturing Company | Molded fibrous filtration products |
-
0
- CA CA728462A patent/CA728462A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4536440A (en) * | 1984-03-27 | 1985-08-20 | Minnesota Mining And Manufacturing Company | Molded fibrous filtration products |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA728462A (en) | Filter face mask | |
CA738393A (en) | Sputtering mask | |
CA742050A (en) | Filter apparatus | |
CA742928A (en) | Face mask | |
CA745872A (en) | Filter | |
CA728992A (en) | Filter | |
CA732915A (en) | Filter | |
CA739268A (en) | Filter | |
CA741144A (en) | Filter | |
CA741615A (en) | Filter | |
AU419386B2 (en) | Filter | |
CA732002A (en) | Filters | |
CA730956A (en) | Filters | |
CA743397A (en) | Filters | |
CA724990A (en) | Filter devices | |
CA738792A (en) | Filter devices | |
CA747587A (en) | Mounting for face mask | |
AU434094B2 (en) | Filtration mask | |
CA730954A (en) | Magnetic-mechanical continuous filter | |
CA724987A (en) | Filter structure | |
AU880166A (en) | Filter | |
AU2236467A (en) | Filter | |
CA742498A (en) | Heated face mask | |
AU422479B2 (en) | Filter unit | |
AU323766A (en) | Filters |