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| Patents for Hannibal D. Fields | |||||
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| Number | Date | Patentee | Title | Type | |
| 411,241 | Sep. 17, 1889 | H.D. Fields | Band-saw guide | bandsaw guides | |
| 1,003,350 | Sep. 12, 1911 | H.D. Fields | Machine for Refacing Band Saw Wheels | portable turning tools | |