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3555251
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Patent number 3,555,251
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Issue date Jan 12, 1971
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F24 - HEATING RANGES VENTILATING
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3284615
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Patent number 3,284,615
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Issue date Nov 8, 1966
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F22 - STEAM GENERATION
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3223326
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Patent number 3,223,326
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Issue date Dec 14, 1965
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F22 - STEAM GENERATION
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3221230
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Patent number 3,221,230
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Issue date Nov 30, 1965
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G05 - CONTROLLING REGULATING
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3190301
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Patent number 3,190,301
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Issue date Jun 22, 1965
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G05 - CONTROLLING REGULATING
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3184686
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Patent number 3,184,686
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Issue date May 18, 1965
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G05 - CONTROLLING REGULATING
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3152602
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Patent number 3,152,602
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Issue date Oct 13, 1964
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G05 - CONTROLLING REGULATING
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3105928
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Patent number 3,105,928
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Issue date Oct 1, 1963
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G05 - CONTROLLING REGULATING
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3089474
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Patent number 3,089,474
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Issue date May 14, 1963
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G05 - CONTROLLING REGULATING
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3070301
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Patent number 3,070,301
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Issue date Dec 25, 1962
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G05 - CONTROLLING REGULATING
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3048331
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Patent number 3,048,331
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Issue date Aug 7, 1962
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G05 - CONTROLLING REGULATING
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3044701
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Patent number 3,044,701
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Issue date Jul 17, 1962
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G05 - CONTROLLING REGULATING
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3034569
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Patent number 3,034,569
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Issue date May 15, 1962
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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3031267
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Patent number 3,031,267
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Issue date Apr 24, 1962
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G05 - CONTROLLING REGULATING
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2972447
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Patent number 2,972,447
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Issue date Feb 21, 1961
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G05 - CONTROLLING REGULATING
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2972446
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Patent number 2,972,446
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Issue date Feb 21, 1961
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G05 - CONTROLLING REGULATING
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2777289
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Patent number 2,777,289
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Issue date Jan 15, 1957
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G05 - CONTROLLING REGULATING
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2765219
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Patent number 2,765,219
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Issue date Oct 2, 1956
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G01 - MEASURING TESTING
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2761284
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Patent number 2,761,284
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Issue date Sep 4, 1956
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G05 - CONTROLLING REGULATING
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2687612
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Patent number 2,687,612
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Issue date Aug 31, 1954
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2666584
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Patent number 2,666,584
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Issue date Jan 19, 1954
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES