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| Patents for J. Fred. Acker | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 450,892 | Apr. 21, 1891 | W.H. Potter | Scriber | |
 | 461,714 | Oct. 20, 1891 | J. Ryan | Pipe Wrench | |
 | 476,079 | May 31, 1892 | J. Ryan | Wrench | |
 | 529,632 | Nov. 20, 1894 | W.N. Smith | Wrench | |
 | 538,639 | Apr. 30, 1895 | W.R. Hale, F.J. Bourn | Wrench | |
 | 542,922 | Jul. 16, 1895 | W.H. Brock | Flange Wrench | |
 | 554,991 | Feb. 18, 1896 | L.P. Davidson | Wrench | |
 | 572,035 | Nov. 24, 1896 | W.C. Stokes | Wrench | |
 | 572,808 | Dec. 08, 1896 | M. Killian | Tool For Miners' and Blasters' Use | |
 | 573,651 | Dec. 22, 1896 | L.L. Hall | Wench | |