Marshall L. Alexander

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Gretna, NE, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and means for installing geothermal heat loops
- Patent number 8,714,237
- Issue date May 6, 2014
- Marshall T. Alexander
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Method and means for installing geothermal heat loops
- Publication number 20120234602
- Publication date Sep 20, 2012
- Marshall L. Alexander
- F24 - HEATING RANGES VENTILATING