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| Patents for Williarm R. Timken | |||||
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| Number | Date | Patentee | Title | Type | |
| 606,635 | Jun. 28, 1898 | H. Timken, R. Heinzelman | Roller-bearing for vehicles | vehicle bearings | |
| 606,636 | Jun. 28, 1898 | R. Heinzelman, H. Timken | Roller-bearing | vehicle bearings | |