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| All Patents in class 356/16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,273,355 | Feb. 17, 1942 | E.S. Hineline | Range Finder for Photographic Purposes | camera range finders | |
| 2,302,584 | Nov. 17, 1942 | O. Steiner | Combined Range and View Finder Having Parallax Correcting Means | camera view finders | |
| 2,811,908 | Nov. 05, 1957 | H. Nerwin | Rangefinder Deflecting System for Photographic Cameras | camera range finders | |