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| Patents for J. Fred Acker | |||||
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| Picture | Number | Date | Patentee | Title | |
| 477,158 | Jun. 14, 1892 | C. Sprewitz | Veneering-machine | ||
 | 538,119 | Apr. 23, 1895 | J.B. Olney | Billiard Cue Cutter | |
 | 544,587 | Aug. 13, 1895 | W. Moore | Plumb and Level | |
 | 561,823 | Jun. 09, 1896 | J. Shafer | Wrench | |
 | 603,530 | May 03, 1898 | E. Henwood | Wrench | |
 | 762,035 | Jun. 07, 1904 | W.F. Folmer | Magazine Film Holder | |