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Continuous heating furnace
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Patent number 9,869,516
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Issue date Jan 16, 2018
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IHI Corporation
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Kimiyoshi Satoh
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F27 - FURNACES KILNS OVENS RETORTS
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Gas flow furnace
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Patent number 6,109,914
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Issue date Aug 29, 2000
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Nippon Furnace Kogyo Kabushiki Kaisha
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Mamoru Matsuo
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C21 - METALLURGY OF IRON
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Steel heating furnace
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Patent number 5,314,170
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Issue date May 24, 1994
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Nippon Furnace Kogyo Kaisha, Ltd.
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Takeshi Tada
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C21 - METALLURGY OF IRON
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2451349
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Patent number 2,451,349
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Issue date Oct 12, 1948
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F27 - FURNACES KILNS OVENS RETORTS
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2329211
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Patent number 2,329,211
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Issue date Sep 14, 1943
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F27 - FURNACES KILNS OVENS RETORTS
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2157221
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Patent number 2,157,221
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Issue date May 9, 1939
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F27 - FURNACES KILNS OVENS RETORTS
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2147997
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Patent number 2,147,997
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Issue date Feb 21, 1939
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F27 - FURNACES KILNS OVENS RETORTS
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2133673
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Patent number 2,133,673
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Issue date Oct 18, 1938
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F27 - FURNACES KILNS OVENS RETORTS
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2056904
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Patent number 2,056,904
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Issue date Oct 6, 1936
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F27 - FURNACES KILNS OVENS RETORTS
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1950375
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Patent number 1,950,375
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Issue date Mar 13, 1934
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F27 - FURNACES KILNS OVENS RETORTS
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1914955
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Patent number 1,914,955
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Issue date Jun 20, 1933
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F27 - FURNACES KILNS OVENS RETORTS
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1912933
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Patent number 1,912,933
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Issue date Jun 6, 1933
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F27 - FURNACES KILNS OVENS RETORTS
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1866547
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Patent number 1,866,547
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Issue date Jul 12, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1848231
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Patent number 1,848,231
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Issue date Mar 8, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1843099
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Patent number 1,843,099
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Issue date Jan 26, 1932
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F27 - FURNACES KILNS OVENS RETORTS
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1674985
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Patent number 1,674,985
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Issue date Jun 26, 1928
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F27 - FURNACES KILNS OVENS RETORTS
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1673771
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Patent number 1,673,771
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Issue date Jun 12, 1928
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F27 - FURNACES KILNS OVENS RETORTS
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1627979
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Patent number 1,627,979
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Issue date May 10, 1927
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F27 - FURNACES KILNS OVENS RETORTS
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1523485
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Patent number 1,523,485
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Issue date Jan 20, 1925
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F27 - FURNACES KILNS OVENS RETORTS
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1522000
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Patent number 1,522,000
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Issue date Jan 6, 1925
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F27 - FURNACES KILNS OVENS RETORTS
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1522166
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Patent number 1,522,166
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Issue date Jan 6, 1925
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F27 - FURNACES KILNS OVENS RETORTS
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1506573
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Patent number 1,506,573
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Issue date Aug 26, 1924
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F27 - FURNACES KILNS OVENS RETORTS
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1384435
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Patent number 1,384,435
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Issue date Jul 12, 1921
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F27 - FURNACES KILNS OVENS RETORTS
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1378326
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Patent number 1,378,326
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Issue date May 17, 1921
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C21 - METALLURGY OF IRON