Phillip W. Robertson

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Mt. Vernon, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Combustion grate with rods for pellet fueled stove
- Patent number 5,295,474
- Issue date Mar 22, 1994
- Pyro Industries, Inc.
- Oliver J. Whitfield
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Combustion grate for pellet fueled stove
- Patent number 5,137,010
- Issue date Aug 11, 1992
- Pyro Industries, Inc.
- Oliver J. Whitfield
- F24 - HEATING RANGES VENTILATING