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| All Patents in class 475/248 | |||||
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| Number | Date | Patentee | Title | Type | |
| 225,827 | Mar. 23, 1880 | W. Heilman | Gearing for Traction Engines | traction engine propulsion components | |
| 343,969 | Jun. 15, 1886 | O. Stevens | Traction Engine | traction engine propulsion components | |
| 376,528 | Jan. 17, 1888 | E. Kite | Differential Gear for Traction Engines | traction engine propulsion components | |
| 475,597 | May 24, 1892 | J.J. McNamar | Traction Engine | traction engine propulsion components | |