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| Patents for Hayward A. Harvey | |||||
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| Number | Date | Patentee | Title | Type | |
| 42,766 | May 17, 1864 | H.A. Harvey | Improvement in Machines for Threading Wood-Screws | metal threading machines | |
| 44,724 | Oct. 18, 1864 | H.A. Harvey | Improvement in Files | files | |
| RE7,573 | Mar. 27, 1877 | H.A. Harvey | Machine for Threading Wood Screws | ||
| 379,393 | Mar. 13, 1888 | H.A. Harvey | Machine for Making Washers | jar washing machines | |