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2493458
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Information
Patent Grant
2493458
References
Source
Patent Number
2,493,458
Date Filed
Not available
Date Issued
Tuesday, January 3, 1950
75 years ago
CPC
C21B9/06 - Linings
Y10S165/035 - in casing
US Classifications
165 - Heat exchange
052 - Static structures
404 - Road structure, process, or apparatus
D25 - Building units and construction elements
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