Grant W. Miles

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London, CA

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Patents Grantslast 30 patents

Information Patent Grant
Heat recovery ventilator with room air defrosting feature
- Patent number 5,632,334
- Issue date May 27, 1997
- Nutech Energy Systems Inc.
- Peter K. Grinbergs
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heat recovery ventilator
- Patent number D376842
- Issue date Dec 24, 1996
- Nutech Energy Systems Inc.
- John Franklin
- D23 - Environmental heating and cooling