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| Patents for Hiram Clark | |||||
| Number | Date | Patentee | Title | Type | |
| 4,488X | Jul. 06, 1826 | H. Clark, S. Church | Washing machine | washing machines | |
| 166,674 | Aug. 10, 1875 | A.A. Wood | Improvement in Hollow Augers | hollow bits | |
| 358,731 | Mar. 01, 1887 | H. Clark | Countersink | countersinks | |