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AT149251B
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Heat exchange device for preheating liquids or gases, especially boiler feed water.
Assignee: Wiederaufbau Ind Und Handels G
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Filing: 1936-02-27
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Granted: 1937-04-10
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Expires: 1956-02-27
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Bibliographic Details
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AT
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2026-10-26 16:41
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