KOOL-FIRE RESEARCH & DEVELOPMENT INC

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Patents Grantslast 30 patents

Information 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
Information 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