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| All Patents in class 366/209 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 627,602 | Jun. 27, 1899 | S.D. Smith | Cooling and Freezing Apparatus | ||
 | 2,109,233 | Feb. 22, 1938 | A.P. Jorgenson | Paint and liquid mixer | |