177 resultados para plastic thatch manufacture
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At head of title: Department of the Interior, Franklin K. Lane, secretary. Bureau of Mines, Van. H. Manning, director.
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"Regulations under 'The crown lands act, 1903' ": p.70-98.
Phenol manufacture in Germany by the chlorination, sulfonation, and raschig processes [supplement] /
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PB-76032-S.
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Includes bibliographical references and index.