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| Patents for David D. Hanson | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,202X | Oct. 20, 1830 | D.D. Hanson | Machine for sawing felloes | wheelwright | |
| 7,627X | Jun. 29, 1833 | D.D. Hanson | Grooving machine | wood shapers | |