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| All Patents in class 62/209 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,267,607 | Dec. 23, 1941 | W.J. Harvey | Refrigerating Apparatus | ||
| 2,396,559 | Mar. 12, 1946 | E.J. Dillman | Air Cooling Apparatus | ||