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| Patents for James R. Offield | |||||
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| Number | Date | Patentee | Title | Type | |
| 843,253 | Feb. 05, 1907 | W.A. Barker | Friction-lock | steering apparatus | |
| 928,939 | Jul. 27, 1909 | J. Charter, J.A. Charter | Charge Forming Device for Gas Engines | internal combustion engine governors | |