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| All Patents in class 242/596.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,023,933 | Apr. 23, 1912 | W.F. Folmer | Film Winding Key for Cameras | cameras | |
| 1,065,601 | Jun. 24, 1913 | W.F. Folmer | Film Spool Center | roll film spools | |
| 1,186,653 | Jun. 13, 1916 | W.F. Folmer | Film Spool Center | roll film spools | |