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All Patents in class 396/509
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
716,021Dec. 16, 1902W.F. FolmerPhotographic Cameracameras
2,236,925Apr. 01, 1941O. SteinerAutomatic Diaphragm Adjusting Mechanism for Photographic Camerascameras
2,550,698May 01, 1951E. Berlant, R.W. KingAutomatic Reflex Camera with Diaphragm Adjustment and Flash Synchronizer Meanscameras
2,821,891Feb. 04, 1958A.H. GoreyDiaphragm for Photographic Cameras camera shutters
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