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| All Patents in class 451/428 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 194,001 | Aug. 07, 1877 | W.G. Gibbons, T.H. Savery | Roll Grinding and Finishing Machine | ||
| 598,155 | Feb. 01, 1898 | P.H. Murphy, W.J. Lewis | Machine for Truing Locomotive Driving Wheels | ||
| 683,554 | Oct. 01, 1901 | H.S. King, I.F. Cuttler | Apparatus for Truing up Wheels of Tram or Like Cars | ||
| 692,129 | Jan. 28, 1902 | G.W. Nimon, D.R. Ferguson | Roll Polishing Apparatus | ||
| 750,479 | Jan. 26, 1904 | P.F. McCormick | Car Wheel Grinding Device | ||