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| Patents for J. H. Gumble | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,037,385 | Sep. 03, 1912 | L.E. Whiton | Chuck | metal lathe chucks | |
| 1,099,227 | Jun. 09, 1914 | L.E. Whiton | Chuck | metal lathe chucks | |