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| Patents for Albert L. Colburn | |||||
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| Number | Date | Patentee | Title | Type | |
| 452,991 | May 26, 1891 | A.L. Colburn | Spindle feed for drill press | drill presses | |
| 1,389,028 | Aug. 30, 1921 | A.L. Colburn | Direct Reading Micrometer Caliper | micrometers | |