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| Patents for William F. Drew | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,253,015 | Jan. 08, 1918 | D.L. Driscoll | Combination Overshot Rotary Milling Cutter | milling machine cutters | |
| 1,333,210 | Mar. 09, 1920 | E.N. Moor | Interior Slotting Attachment for Lathes | metal lathe accessories and attachments | |