Daniel Forest

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St-Charles de Drummond, CA

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Patents Grantslast 30 patents

Information Patent Grant
Unitary heat exchanger for the air-to-air transfer of water vapor a...
- Patent number 5,771,707
- Issue date Jun 30, 1998
- Venmar Ventilation Inc.
- Frederic Lagace
- F24 - HEATING RANGES VENTILATING