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| Patents for Harry L. Amer | |||||
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| Number | Date | Patentee | Title | Type | |
| 378,890 | Mar. 06, 1888 | F. Larson | Bench Dog | bench stops | |
| 429,676 | Jun. 10, 1890 | W. Cann | Pipe Wrench | pipe tongs | |
| 483,222 | Sep. 27, 1892 | J.C. Johnson | Wrench | screw adjust wrenches | |
| 589,200 | Aug. 31, 1897 | W.A. Zietzke | Combination Tool | combination cork extractors | |
| 608,520 | Aug. 02, 1898 | J.A. Hensler | Monkey Wrench | quick adjust wrenches | |
| 632,555 | Sep. 05, 1899 | C.L. Dunham | Wrench For Well-Drilling Tools | ||