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| Patents for Spafford Tool Works | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,283,135 | Oct. 29, 1918 | B.P. Fortin | Multiple Tool Head for Drill Presses | multiple spindle drill presses | |
| 1,326,398 | Dec. 30, 1919 | B.P. Fortin | Multiple-tool-head for drill-presses | drill presses | |
| GB-153,193 | Nov. 04, 1920 | B.P. Fortin | Multiple tool head for drill press | drill presses | |