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GB736094A
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Improvements in or relating to clay treatment
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US2674587A
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Pigment comprising resin coated clay particles
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US2540182A
|
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Treatment of flocculable and deflocculable material
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US2569680A
|
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Flotation process for whitening clay
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US2414313A
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Process of coating web surfaces
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US2249569A
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Treatment of clay by flotation
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US2249570A
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Fractionation of clay
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US2307239A
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Modified clay
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US2185690A
|
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Instrument for measuring light reflectivity
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US1888701A
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Refined clay and method of producing same
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CA423294A
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Modified clay
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CA538982A
|
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Clay comminution method
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