John H. Kramer JR.

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St. Louis County, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Direct fired heaters including premix burner technology
- Patent number 9,188,362
- Issue date Nov 17, 2015
- CAMBRIDGE ENGINEERING INC.
- Gary J. Potter
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
DIRECT FIRED HEATERS INCLUDING PREMIX BURNER TECHNOLOGY
- Publication number 20140209086
- Publication date Jul 31, 2014
- CAMBRIDGE ENGINEERING INC.
- Gary J. Potter
- F24 - HEATING RANGES VENTILATING