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Gerry Vandervaart
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Niagara Falls, Ontario, CA
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last 30 patents
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Patent Grant
High efficiency heat exchanger system with glycol and refrigerant l...
Patent number
5,263,892
Issue date
Nov 23, 1993
Kool-Fire Research & Development
Gerry Vandervaart
F24 - HEATING RANGES VENTILATING
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Patent Grant
Heat condensing furnace with de-intensifier tubes
Patent number
5,189,887
Issue date
Mar 2, 1993
Kool-Fire Research & Development
Gerry Vandervaart
F24 - HEATING RANGES VENTILATING