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Method of smelting iron ore
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Patent number 6,193,781
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Issue date Feb 27, 2001
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The BOC Group, Inc.
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Donald Prentice Satchell
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C21 - METALLURGY OF IRON
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Iron ore refining method
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Patent number 5,938,815
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Issue date Aug 17, 1999
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The BOC Company, Inc.
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Donald Prentice Satchell
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C21 - METALLURGY OF IRON
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Heat exchanger
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Patent number 5,775,129
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Issue date Jul 7, 1998
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The BOC Group, Inc.
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Donald Prentice Satchell
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F28 - HEAT EXCHANGE IN GENERAL
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Metallurgical process
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Patent number 5,613,997
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Issue date Mar 25, 1997
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The BOC Group plc
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Donald P. Satchell
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C21 - METALLURGY OF IRON
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Treatment of water
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Patent number 5,275,742
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Issue date Jan 4, 1994
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The BOC Group plc
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Donald P. Satchell
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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