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| All Patents in class 62/451 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,072,424 | Mar. 02, 1937 | L.W. Eggleston | Refrigerating Apparatus | ||
| 2,077,865 | Apr. 20, 1937 | D.D. Wile | Refrigerating System | ||