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Heat exchange apparatus
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Patent number 4,127,164
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Issue date Nov 28, 1978
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Austral-Erwin Engineering Co.
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Ransome W. Erwin
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F24 - HEATING RANGES VENTILATING
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Heat exchangers and evaporators
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Patent number 4,119,485
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Issue date Oct 10, 1978
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Austral-Erwin Engineering Company
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Ransome W. Erwin
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F24 - HEATING RANGES VENTILATING
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Heat exchange method
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Patent number 4,082,140
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Issue date Apr 4, 1978
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Austral-Erwin Engineering Company
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Ransome W. Erwin
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F24 - HEATING RANGES VENTILATING
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Heat exchangers and evaporators
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Patent number 3,976,537
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Issue date Aug 24, 1976
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Austral-Erwin Engineering Co.
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Ransome W. Erwin
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchangers and evaporators
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Patent number 3,939,036
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Issue date Feb 17, 1976
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Austral-Erwin Engineering Co.
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Ransome W. Erwin
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F28 - HEAT EXCHANGE IN GENERAL
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