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| Patents for John A. Donegan | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 996,462 | Jun. 27, 1911 | D.N. Curtis | Improved Wrench for Jewelers and Instrument Makers | |
 | 1,040,078 | Oct. 01, 1912 | A.H. Widen | Marking-Gage | |