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1839057
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Information
Patent Grant
1839057
References
Source
Patent Number
1,839,057
Date Filed
Not available
Date Issued
Tuesday, December 29, 1931
92 years ago
CPC
F28D11/04 - performed by a tube or a bundle of tubes
Y10S165/144 - Helical
US Classifications
165 - Heat exchange
062 - Refrigeration
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