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| All Patents in class 62/203 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,081,853 | May 25, 1937 | E.J. Dillman | Apparatus and Method for Controlling Refrigeration | industrial control apparatus | |
| 2,326,093 | Aug. 03, 1943 | F.Y. Carter | Refrigerating System | refrigeration apparatus | |