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| Patents for Detroit Machine Screw Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 331,167 | Nov. 24, 1885 | H.H. Taylor | Machine for Threading Tapering Bushings | metal threading machines | |
| 438,032 | Oct. 07, 1890 | H.H. Taylor | Shaft Turning Lathe | shaft turning lathes | |