Donald Kuhnel

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Hobson, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Fluid heater with improved heating elements controller
- Patent number 6,080,971
- Issue date Jun 27, 2000
- Seitz; David
- David Seitz
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Fluid heater with improved heating elements controller
- Patent number 5,866,880
- Issue date Feb 2, 1999
- Seitz; David
- David Seitz
- F24 - HEATING RANGES VENTILATING