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| All Patents in class 384/309 | |||||
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| Number | Date | Patentee | Title | Type | |
| 427,552 | May 13, 1890 | N.F. Burnham | Turbine Water-Wheel | turbine water wheels | |
| 1,059,545 | Apr. 22, 1913 | P.K. Kunze | Device for obtaining intimate contact with, engaging, or clamping bodies of any shape | vise jaws | |
| 2,160,778 | May 30, 1939 | H. Ernst, A.H. Dall | Bearing | grinding machines | |