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Heat exchanger
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Patent number 11,313,586
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Issue date Apr 26, 2022
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Kyungdong Navien Co., Ltd.
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Young Mo Kim
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F24 - HEATING RANGES VENTILATING
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Heat exchanger
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Patent number 11,215,401
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Issue date Jan 4, 2022
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,816,239
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Issue date Oct 27, 2020
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,746,436
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Issue date Aug 18, 2020
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KYUNGDONG NAVIEN CO., LTD.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,690,379
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Issue date Jun 23, 2020
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,641,522
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Issue date May 5, 2020
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,598,406
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Issue date Mar 24, 2020
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,598,405
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Issue date Mar 24, 2020
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Kyungdong Navien Co., Ltd.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 10,480,870
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Issue date Nov 19, 2019
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KYUNGDONG NAVIEN CO., LTD.
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Inchul Jeong
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F28 - HEAT EXCHANGE IN GENERAL
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Boiler system
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Patent number 10,234,170
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Issue date Mar 19, 2019
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Pat Kiely
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F24 - HEATING RANGES VENTILATING
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Heat source apparatus
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Patent number 10,006,659
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Issue date Jun 26, 2018
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Rinnai Corporation
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Takashi Ojiro
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F24 - HEATING RANGES VENTILATING
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-
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3320933
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Patent number 3,320,933
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Issue date May 23, 1967
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F24 - HEATING RANGES VENTILATING
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3165092
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Patent number 3,165,092
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Issue date Jan 12, 1965
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F24 - HEATING RANGES VENTILATING
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3105465
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Patent number 3,105,465
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Issue date Oct 1, 1963
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F24 - HEATING RANGES VENTILATING
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3051145
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Patent number 3,051,145
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Issue date Aug 28, 1962
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F24 - HEATING RANGES VENTILATING
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2983261
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Patent number 2,983,261
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Issue date May 9, 1961
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F24 - HEATING RANGES VENTILATING
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2511683
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Patent number 2,511,683
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Issue date Jun 13, 1950
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F24 - HEATING RANGES VENTILATING
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2490693
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Patent number 2,490,693
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Issue date Dec 6, 1949
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F24 - HEATING RANGES VENTILATING
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2469253
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Patent number 2,469,253
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Issue date May 3, 1949
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F24 - HEATING RANGES VENTILATING
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2408968
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Patent number 2,408,968
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Issue date Oct 8, 1946
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F24 - HEATING RANGES VENTILATING
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2141123
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Patent number 2,141,123
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Issue date Dec 20, 1938
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F24 - HEATING RANGES VENTILATING
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2070559
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Patent number 2,070,559
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Issue date Feb 16, 1937
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F24 - HEATING RANGES VENTILATING
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2016276
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Patent number 2,016,276
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Issue date Oct 8, 1935
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F24 - HEATING RANGES VENTILATING
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2001721
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Patent number 2,001,721
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Issue date May 21, 1935
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F24 - HEATING RANGES VENTILATING