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Rotary retort furnace
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Patent number 4,090,622
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Issue date May 23, 1978
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Sunbeam Equipment Corporation
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Jonathan Smith
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C21 - METALLURGY OF IRON
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Rotary retort furnace
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Patent number 4,069,007
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Issue date Jan 17, 1978
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Sunbeam Equipment Corporation
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Jonathan Smith
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C21 - METALLURGY OF IRON
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Liquid quenching system
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Patent number 4,036,478
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Issue date Jul 19, 1977
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Sunbeam Equipment Corporation
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Jonathan Smith
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C21 - METALLURGY OF IRON
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Rotary retort furnace
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Patent number 4,025,297
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Issue date May 24, 1977
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Sunbeam Equipment Corporation
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Jonathan Smith
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C21 - METALLURGY OF IRON