CA305003A - Coloured filter for projecting films - Google Patents
Coloured filter for projecting filmsInfo
- Publication number
- CA305003A CA305003A CA305003A CA305003DA CA305003A CA 305003 A CA305003 A CA 305003A CA 305003 A CA305003 A CA 305003A CA 305003D A CA305003D A CA 305003DA CA 305003 A CA305003 A CA 305003A
- Authority
- CA
- Canada
- Prior art keywords
- coloured filter
- projecting films
- films
- projecting
- coloured
- 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 |
---|---|---|---|
CA305003T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA305003A true CA305003A (en) | 1930-10-21 |
Family
ID=35258151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA305003A Expired CA305003A (en) | Coloured filter for projecting films |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA305003A (en) |
-
0
- CA CA305003A patent/CA305003A/en not_active Expired
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