Jungwirth; Curtis A.

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Newberg, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Reverse cycle heating system for a building
- Patent number 4,688,717
- Issue date Aug 25, 1987
- Jungwirth; Curtis A.
- Curtis A. Jungwirth
- F24 - HEATING RANGES VENTILATING