CA441039A - Light filter - Google Patents
Light filterInfo
- Publication number
- CA441039A CA441039A CA441039A CA441039DA CA441039A CA 441039 A CA441039 A CA 441039A CA 441039 A CA441039 A CA 441039A CA 441039D A CA441039D A CA 441039DA CA 441039 A CA441039 A CA 441039A
- Authority
- CA
- Canada
- Prior art keywords
- light filter
- filter
- light
- 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 |
---|---|---|---|
CA441039T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA441039A true CA441039A (en) | 1947-04-29 |
Family
ID=35556271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA441039A Expired CA441039A (en) | Light filter |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA441039A (en) |
-
0
- CA CA441039A patent/CA441039A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA441039A (en) | Light filter | |
AU135536B2 (en) | Filters | |
AU136391B2 (en) | Filters | |
CA439799A (en) | Filter | |
CA439818A (en) | Filter | |
CA440818A (en) | Filter | |
CA441729A (en) | Filter | |
CA441730A (en) | Filter | |
CA443923A (en) | Filter | |
CA443924A (en) | Filter | |
CA444684A (en) | Filter | |
CA439545A (en) | Filter for inspirators | |
AU1364947A (en) | Filters | |
AU916747A (en) | Filters | |
CA439415A (en) | Parallel fibre filter | |
CA437506A (en) | Optical filter | |
CA440227A (en) | Optical means | |
CA439688A (en) | Light signals | |
CA442649A (en) | Filter frame | |
AU134744B2 (en) | Improvements indust filters | |
CA441444A (en) | Petrol filter | |
CA443986A (en) | Filtering device | |
CA443779A (en) | Air filtration | |
CA439563A (en) | Filter leaf | |
CA442873A (en) | Filter circuit |