Robert D. Pringle

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Baldwin, KS, US

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Patents Grantslast 30 patents

Information Patent Grant
Pulsed-water condenser cooler
- Patent number 6,381,980
- Issue date May 7, 2002
- Robert D. Pringle
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Water-assisted condenser cooler
- Patent number 5,311,747
- Issue date May 17, 1994
- Robert D. Pringle
- F24 - HEATING RANGES VENTILATING