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| All Patents in class 242/358.1 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,023,933 | Apr. 23, 1912 | W.F. Folmer | Film Winding Key for Cameras | ||
| 1,065,601 | Jun. 24, 1913 | W.F. Folmer | Film Spool Center | ||
| 1,186,653 | Jun. 13, 1916 | W.F. Folmer | Film Spool Center | ||