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Powder injector for ladle
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Patent number 6,409,962
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Issue date Jun 25, 2002
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Rossborough Manufacturing Co.
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Paul D. Lawson
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C21 - METALLURGY OF IRON
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Magnesium desulfurization agent
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Patent number 6,383,249
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Issue date May 7, 2002
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Rossborough Manufacturing Co. LP
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Thomas H. Bieniosek
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C21 - METALLURGY OF IRON
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Magnesium desulfurization agent
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Patent number 6,352,570
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Issue date Mar 5, 2002
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Rossborough Manufacturing Co., LP
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Thomas H. Bieniosek
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C21 - METALLURGY OF IRON
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Metal injection molding
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Patent number 6,350,328
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Issue date Feb 26, 2002
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Rossborough Manufacturing Co. LP
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David W. Hostetler
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Desulfurization agent
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Patent number 5,368,631
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Issue date Nov 29, 1994
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Rossborough Manufacturing Company
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W. Neil Rossborough
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C21 - METALLURGY OF IRON
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Desulfurization agent
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Patent number 5,358,550
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Issue date Oct 25, 1994
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Rossborough Manufacturing Company
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W. Neil Rossborough
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Sliding sleeve sampler
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Issue date Jun 10, 1980
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Rossborough Manufacturing Co.
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Joseph J. Boron
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Rossborough Manufacturing Company
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6 - Common metals and their alloys