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| Patents for George H. Ingraham | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,106,189 | Aug. 04, 1914 | A.E. Church | Chuck | drill press chucks | |
| 1,219,083 | Mar. 13, 1917 | A.E. Church | Hydraulic chuck | metal lathe chucks | |