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| Patents for Bernhard T. Burchardi | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 821,984 | May 29, 1906 | V.J. Wahlstrom, B.T. Burchardi | Clutch and counter-shaft mechanism | |
 | 884,243 | Apr. 07, 1908 | V.J. Wahlstrom | Milling-machine | |
 | 884,244 | Apr. 07, 1908 | V.J. Wahlstrom | Chuck | |
 | 996,953 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | |
 | 996,954 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | |
 | 996,955 | Jul. 04, 1911 | V.J. Wahlstrom | Chuck | |
 | 1,046,237 | Dec. 03, 1912 | V.J. Wahlstrom | Drill and chuck | |