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| All Patents in class 366/349 | |||||
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| Number | Date | Patentee | Title | Type | |
| AI97 | May 13, 1851 | J. O'Neil | Atmospheric churn | ||
| 2,543,151 | Feb. 27, 1951 | H.L. Cerniak | Combination Plug and Agitator Crank | wrench combination tools | |