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| Patents for Pardon A. Whitney | |||||
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| Number | Date | Patentee | Title | Type | |
| 821,688 | May 29, 1906 | R.C. Ellrich, P.A. Whitney | Chuck | brace chucks | |
| 821,689 | May 29, 1906 | R.C. Ellrich, P.A. Whitney | Chuck | brace chucks | |
| 902,191 | Oct. 27, 1908 | P.A. Whitney | Chuck | ||