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| Patents for J. Fred. Acker | |||||
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| Number | Date | Patentee | Title | Type | |
| 613,572 | Nov. 01, 1898 | M.E. Hunt | Meat-Tenderer | meat choppers | |
| 646,263 | Mar. 27, 1900 | P.R. Coleman | Wrench | quick adjust wrenches | |
| 716,021 | Dec. 16, 1902 | W.F. Folmer | Photographic Camera | cameras | |
| 731,879 | Jun. 23, 1903 | W.F. Folmer | Tripod | camera tripods | |
| 756,614 | Apr. 05, 1904 | W.F. Folmer | Camera | cameras | |
| 773,382 | Oct. 25, 1904 | W.F. Folmer | Plate Holder | film and plate holders | |
| 804,802 | Nov. 14, 1905 | W.F. Folmer | Camera | cameras | |
| 843,140 | Feb. 05, 1907 | W.F. Folmer | Camera | cameras | |