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| Patents for James H. Haskins | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,450 | Jan. 13, 1874 | D.B. Denison, J.H. Haskins | Screw Cutting Tools for Metal Lathes | lathe tools | |
| 420,064 | Jan. 28, 1890 | J.H. Haskins | Vertical Gang Lathe | multiple spindle lathes | |
| 816,322 | Mar. 27, 1906 | J.H. Haskins | Bolt Threading Machine | metal threading machines | |