William C. Bickford

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Murfreesboro, TN, US

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Patents Grantslast 30 patents

Information Patent Grant
Geothermal heat exchange unit
- Patent number 5,816,314
- Issue date Oct 6, 1998
- B. Ryland Wiggs
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Geothermal direct expansion heat pump system
- Patent number 5,671,608
- Issue date Sep 30, 1997
- Geothermal Heat Pumps, Inc.
- B. Ryland Wiggs
- F24 - HEATING RANGES VENTILATING