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| All Patents in class 403/150 | |||||
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| Number | Date | Patentee | Title | Type | |
| 321,727 | Jul. 07, 1885 | A.L. Ide | Steam Engine Cross Head | steam cross heads | |
| 2,687,930 | Aug. 31, 1954 | G.L. Smith | Piston for Internal Combustion Engines | pistons | |