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US3775096A
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Production of niobium and tantalum
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US3775271A
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Electrolytic preparation of titanium and zirconium diborides using a molten, sodium salt electrolyte
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US3775308A
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Method for preparation of composite semipermeable membrane
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US3725268A
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Softening of sea water by addition of barium carbonate and mineral acid
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US3725267A
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Softening of sea water by addition of barium carbonate and co2
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US3806564A
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Method of chemically modifying asymmetric membranes
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US3725260A
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Separation of pesticides from lipids by gel permeation chromatography
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US3774771A
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Reverse osmosis module
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US3746522A
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Gasification of carbonaceous solids
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US3725235A
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Dynamically formed electrodialysis membranes
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US3774759A
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Separation of particulate solids of varying densities in a fluidized bed
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US3775091A
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Induction melting of metals in cold, self-lined crucibles
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