John Allan Dolphin

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Edina, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Solar heater
- Patent number 8,555,872
- Issue date Oct 15, 2013
- John Allan Dolphin
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Solar Heater
- Publication number 20120222670
- Publication date Sep 6, 2012
- John Allan Dolphin
- F24 - HEATING RANGES VENTILATING