CA345823A - Light filter - Google Patents
Light filterInfo
- Publication number
- CA345823A CA345823A CA345823A CA345823DA CA345823A CA 345823 A CA345823 A CA 345823A CA 345823 A CA345823 A CA 345823A CA 345823D A CA345823D A CA 345823DA CA 345823 A CA345823 A CA 345823A
- 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 |
|---|---|---|---|
| CA345823T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA345823A true CA345823A (en) | 1934-11-06 |
Family
ID=35317097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA345823A Expired CA345823A (en) | Light filter |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA345823A (en) |
-
0
- CA CA345823A patent/CA345823A/en not_active Expired
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