Ronald C. Hoffmann

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Maryland Heights, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Ventilating hood
- Patent number 4,700,688
- Issue date Oct 20, 1987
- Cambridge Engineering, Inc.
- James A. Searcy
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ventilating hood
- Patent number 4,286,572
- Issue date Sep 1, 1981
- Cambridge Engineering, Inc.
- James A. Searcy
- F24 - HEATING RANGES VENTILATING