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Apparatus for preparing synthetic carbonado diamonds
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Method of forming rolls
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Apparatus for making powdered metals
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Apparatus for making powdered metals
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Centrifugally cast product
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Centrifugal casting of carbide and like materials
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Improved pressure molding method
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Method of making improved cutting and forming tools and wearresisting surfaces
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Improved cutting and forming tool and wearing surface
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Refractory metal compound and process of making the same
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Method of treating metals
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Compositions of matter and process of preparing same
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Toy
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