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| All Patents in class 366/252 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,398X | Mar. 17, 1829 | Z.S. Doty | Churn | churns | |
| 179,419 | Jul. 04, 1876 | C.W. Madsen | Coffee Roaster | coffee roasters | |
| 240,448 | Apr. 19, 1881 | R.J. Morton | Stirrer for Coffee Roasters | coffee roasters | |
| 495,925 | Apr. 18, 1893 | A.C. Albrecht | Egg-beater | egg and cream beaters | |
| 887,800 | May 19, 1908 | C.L. Heisler | Churn | churns | |