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| Patents for Ira Gardiner | |||||
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| Number | Date | Patentee | Title | Type | |
| 35,059 | Apr. 22, 1862 | J.W. Douglas | Double-acting hand pump | household hand pumps | |
| 38,444 | May 05, 1863 | J.W. Douglas | Improvement in pumps | household hand pumps | |
| 56,671 | Jul. 24, 1866 | J.W. Douglas | Double acting pump | household hand pumps | |