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-
-
-
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3357411
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Patent number 3,357,411
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Issue date Dec 12, 1967
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3345975
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Patent number 3,345,975
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Issue date Oct 10, 1967
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F22 - STEAM GENERATION
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3220193
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Patent number 3,220,193
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Issue date Nov 30, 1965
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3125073
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Patent number 3,125,073
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Issue date Mar 17, 1964
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F22 - STEAM GENERATION
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3092086
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Patent number 3,092,086
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Issue date Jun 4, 1963
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F22 - STEAM GENERATION
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3064630
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Patent number 3,064,630
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Issue date Nov 20, 1962
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F22 - STEAM GENERATION
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3052223
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Patent number 3,052,223
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Issue date Sep 4, 1962
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2998807
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Patent number 2,998,807
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Issue date Sep 5, 1961
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F24 - HEATING RANGES VENTILATING
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2987053
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Patent number 2,987,053
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Issue date Jun 6, 1961
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F22 - STEAM GENERATION
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2985150
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Patent number 2,985,150
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Issue date May 23, 1961
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F22 - STEAM GENERATION
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2982267
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Patent number 2,982,267
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Issue date May 2, 1961
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F22 - STEAM GENERATION
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2872908
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Patent number 2,872,908
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Issue date Feb 10, 1959
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F22 - STEAM GENERATION
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2822787
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Patent number 2,822,787
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Issue date Feb 11, 1958
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F28 - HEAT EXCHANGE IN GENERAL
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2621637
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Patent number 2,621,637
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Issue date Dec 16, 1952
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F22 - STEAM GENERATION
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2324513
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Patent number 2,324,513
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Issue date Jul 20, 1943
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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2321390
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Patent number 2,321,390
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Issue date Jun 8, 1943
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F22 - STEAM GENERATION
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2202495
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Patent number 2,202,495
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Issue date May 28, 1940
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F22 - STEAM GENERATION
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2170344
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Patent number 2,170,344
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Issue date Aug 22, 1939
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F22 - STEAM GENERATION
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2170345
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Patent number 2,170,345
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Issue date Aug 22, 1939
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F22 - STEAM GENERATION
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2170343
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Patent number 2,170,343
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Issue date Aug 22, 1939
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F22 - STEAM GENERATION
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2170342
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Patent number 2,170,342
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Issue date Aug 22, 1939
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F22 - STEAM GENERATION
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2119100
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Patent number 2,119,100
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Issue date May 31, 1938
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F22 - STEAM GENERATION
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2048373
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Patent number 2,048,373
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Issue date Jul 21, 1936
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F22 - STEAM GENERATION
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2032368
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Patent number 2,032,368
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Issue date Mar 3, 1936
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F22 - STEAM GENERATION
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1969406
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Patent number 1,969,406
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Issue date Aug 7, 1934
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F22 - STEAM GENERATION
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1961233
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Patent number 1,961,233
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Issue date Jun 5, 1934
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F22 - STEAM GENERATION