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| Patents for Louis N. Gowell | |||||
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| Number | Date | Patentee | Title | Type | |
| 464,316 | Dec. 01, 1891 | R.C. Greenerd | Machine for Applying and Removing Collars from Shafts | arbor presses | |
| 502,199 | Jul. 25, 1893 | C.G. Osteman | Bevel | bevels | |
| 502,649 | Aug. 01, 1893 | H.C. Andersen | Speed Indicator for Shafting | measurement gauges | |
| 516,191 | Mar. 13, 1894 | E.O. Ely | Combination Wrench | pipe and nut combination wrenches | |