C. Robert Kenrick

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Spring Lake, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Insulated duct end system
- Patent number 4,890,864
- Issue date Jan 2, 1990
- C-System Incorporated
- Charles B. Anderson
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Insulated duct end system
- Patent number 4,735,235
- Issue date Apr 5, 1988
- C-System Incorporated
- Charles B. Anderson
- F24 - HEATING RANGES VENTILATING