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| All Patents in class 137/599.07 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,432,859 | Dec. 16, 1947 | F.Y. Carter | Refrigerant Flow Controlling Means | flow controls | |
| 3,610,274 | Oct. 05, 1971 | A. Hirt, G.N. Levesque | Fluid Logic Circuit | ||