Wetzel Enterprises, Inc.

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Dallas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Solar powered fluid heating system
- Patent number 4,771,763
- Issue date Sep 20, 1988
- Wetzel Enterprises, Inc.
- Otto K. Wetzel
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Solar powered fluid heating system having an improved thermal colle...
- Patent number 4,615,328
- Issue date Oct 7, 1986
- Wetzel Enterprises, Inc.
- Otto K. Wetzel
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Fluid heating system utilizing solar energy and waste heat
- Patent number 4,545,365
- Issue date Oct 8, 1985
- Wetzel Enterprises, Inc.
- Otto K. Wetzel
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Solar powered fluid heating system
- Patent number 4,512,157
- Issue date Apr 23, 1985
- Wetzel Enterprises, Inc.
- Glenn E. Weadock
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Solar powered fluid heating system
- Patent number 4,483,320
- Issue date Nov 20, 1984
- Wetzel Enterprises, Inc.
- Otto K. Wetzel
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

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