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| Patents for Milton B. Hill | |||||
| Number | Date | Patentee | Title | Type | |
| 664,319 | Dec. 18, 1900 | M.B. Hill | Oil-stone | ||
| 687,884 | Dec. 03, 1901 | M.B. Hill | Clamping Dog | lathe dogs | |
| 768,454 | Aug. 23, 1904 | M.B. Hill | Machine Dog | lathe dogs | |