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P. M. Wilson Improvement in Smelting Furnaces - DPLA - 7ab88f48400b862556c83aeea944c88b (page 3)

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P. M. Wilson Improvement in Smelting Furnaces - DPLA - 7ab88f48400b862556c83aeea944c88b (page 3)

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12/03/1872
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Public Domain

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