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| Patents for N. S. Bates | |||||
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| Number | Date | Patentee | Title | Type | |
| 750,108 | Jan. 19, 1904 | B.M. Hanson | Tool-holder | lathe tool holders and tool posts | |
| 795,222 | Jul. 18, 1905 | B.M. Hanson | Gearing for lathes | metal lathes | |