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| Patents for Bernard T. Burchardi | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 968,718 | Aug. 30, 1910 | V.J. Wahlstrom | Tapping or drilling attachment | |
 | 970,670 | Sep. 20, 1910 | V.J. Wahlstrom | Drilling-machine and drill | |