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Flash boiler
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Patent number 10,928,058
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Issue date Feb 23, 2021
-
Guy Louis Letourneau
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F22 - STEAM GENERATION
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Hot water boiler
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Patent number 10,281,139
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Issue date May 7, 2019
-
Junggon Kim
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F24 - HEATING RANGES VENTILATING
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-
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Hot water or steam boiler
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Patent number 4,171,685
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Issue date Oct 23, 1979
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Osby Varme AB
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Finn U. Ek
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F24 - HEATING RANGES VENTILATING
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Hot water or steam boiler
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Patent number 4,123,995
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Issue date Nov 7, 1978
-
Osby, Varme AB
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Finn U. Ek
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F24 - HEATING RANGES VENTILATING
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2018709
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Patent number 2,018,709
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Issue date Oct 29, 1935
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F22 - STEAM GENERATION
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1853183
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Patent number 1,853,183
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Issue date Apr 12, 1932
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F22 - STEAM GENERATION
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1725408
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Patent number 1,725,408
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Issue date Aug 20, 1929
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F22 - STEAM GENERATION
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1508194
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Patent number 1,508,194
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Issue date Sep 9, 1924
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F22 - STEAM GENERATION
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1488531
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Patent number 1,488,531
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Issue date Apr 1, 1924
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F22 - STEAM GENERATION