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| Patents for S. Andrews | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,104,255 | Jul. 21, 1914 | G.W. Emrick | Drill-chuck | drill press chucks | |
| 1,109,121 | Sep. 01, 1914 | G.W. Emrick | Drill-chuck | drill chucks | |