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| All Patents in class 396/494 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,402,486 | Jan. 03, 1922 | W.F. Folmer | Photographic Shutter | camera shutters | |
| 2,353,893 | Jul. 18, 1944 | E.S. Hineline | Shutter Mechanism for Photorecording and Other Cameras | camera shutters | |
| 2,362,813 | Nov. 14, 1944 | E.S. Hineline, L.D. Nadel, A.H. Gorey | Photographic Camera Particularly Adapted for Aerial Photography | cameras | |