Dan Perz

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Hamilton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Direct vent fireplace
- Patent number 5,669,374
- Issue date Sep 23, 1997
- GSW Inc.
- Tim Valters
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Termination device for horizontal direct vent gas fireplaces or the...
- Patent number 5,562,088
- Issue date Oct 8, 1996
- GSW Inc.
- Tim Valters
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES