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| Patents for A. A. Barker | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 389,057 | Sep. 04, 1888 | M.E. Clark | Machine for turning wooden rings | |
 | 391,211 | Oct. 16, 1888 | R.T. Torkelson | Combination Tool For Velocipedes | |
 | 432,179 | Jul. 15, 1890 | E.S. Capen | Friction-clutch | |
 | 477,693 | Jun. 28, 1892 | W.F. Nicholson | Hand Implement for Tooling Stone Surfaces | |
 | 614,537 | Nov. 22, 1898 | A. Dahlquist, N.A. Dahlquist | Combined Wire Cutter, Pocket Knife, and Corkscrew | |