Robert W. Frederick

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Bedford, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Copper-watcher
- Patent number 7,834,772
- Issue date Nov 16, 2010
- Robert W. Frederick
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Copper-Watcher
- Publication number 20090251324
- Publication date Oct 8, 2009
- Robert W. Frederick
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...