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Industrial Energy Corporation
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Andover, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Heat recovery apparatus
Patent number
4,930,571
Issue date
Jun 5, 1990
Industrial Energy Corporation
James B. Paull
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Heat exchange recovery method
Patent number
4,928,749
Issue date
May 29, 1990
Industrial Energy Corporation
James B. Paull
F24 - HEATING RANGES VENTILATING
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last 30 patents
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