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971920
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Information
Patent Grant
971920
References
Source
Patent Number
971,920
Date Filed
Not available
Date Issued
Tuesday, October 4, 1910
114 years ago
CPC
F22D11/06 - for returning condensate to boiler
Y10T137/2971 - Gas condensing type
US Classifications
137 - Fluid handling
122 - Liquid heaters and vaporizers
237 - Heating systems
417 - Pumps
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