| All Patents in class 396/534 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 716,021 | Dec. 16, 1902 | W.F. Folmer | Photographic Camera |
| | 922,411 | May 18, 1909 | W.F. Folmer | Focusing Attachment for Camera |
 | 932,457 | Aug. 31, 1909 | W.F. Folmer | Camera |
 | 993,047 | May 23, 1911 | W.F. Folmer | Camera |
| | 1,023,931 | Apr. 23, 1912 | W.F. Folmer | Camera |
| | 1,060,834 | May 06, 1913 | W.F. Folmer | Focusing Hood for Cameras |
| | 1,101,532 | Jun. 30, 1914 | W.F. Folmer | Focusing Hood |
| | 2,293,427 | Aug. 18, 1942 | L.D. Nadel | Reflex Focusing Hood with Cooperating Built-In Direct-Vision View Finder |
