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| All Patents in class 396/147 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,215,370 | Sep. 17, 1940 | E.S. Hineline | Range Finder | camera range finders | |
| 2,936,690 | May 17, 1960 | V.E. Whitman | Photographic Camera | cameras | |