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| All Patents in class 261/DIG.016 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,922,749 | Aug. 15, 1933 | L. Roush | Cream whipping apparatus | dairy machinery | |
| 2,116,764 | May 10, 1938 | D.A. Meeker | Food handling apparatus | ||