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| 2039593 | Heat transfer coil | |||
| 2064141 | Method of making refrigerating apparatus | |||
| 2065653 | Solar water heater | |||
| 2156544 | Embossed tube evaporator plate for refrigerating systems | |||
| 2202756 | Fluid heater | |||
| 2271437 | Method of making heat exchangers | |||
| 2277311 | Sun water heater | |||
| 2311579 | Solar heater | |||
| 2358476 | Solar water heater |