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| All Patents in class 62/115 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,008,663 | Jul. 23, 1935 | E.J. Dillman | Apparatus and Method for Controlling Refrigeration | industrial control apparatus | |
| 2,125,842 | Aug. 02, 1938 | L.W. Eggleston | Refrigerating Apparatus | refrigeration apparatus | |
| 2,187,038 | Jan. 16, 1940 | I.J. Knudson | Method of and Apparatus for Cold Control | refrigeration apparatus | |