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1725408
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Information
Patent Grant
1725408
References
Source
Patent Number
1,725,408
Date Filed
Not available
Date Issued
Tuesday, August 20, 1929
94 years ago
CPC
F22B7/04 - with auxiliary water tubes
F22B11/02 - the fire tubes being in upright arrangement
F22B27/16 - involving spray nozzles for sprinkling or injecting water particles on to or into hot heat-exchange elements
US Classifications
122 - Liquid heaters and vaporizers
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