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GB575343A
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Improvements in powder metallurgy
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US2370396A
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Powder metallurgy
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US2392545A
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Production of metal hydrides
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US2374747A
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Method of making tubular bearings
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US2355954A
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Powder metallurgy
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US2342037A
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Powder metallurgy
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US2267041A
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Metallurgical furnace
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US2301043A
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Antifouling of firearms
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GB546490A
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Improvements in the production of finely divided metals from metal compounds without fusion
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US2336982A
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Press
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US2297554A
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Welding
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US2236441A
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Metallurgical apparatus
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US2236474A
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Reduction of metal compounds without fusion
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US2247370A
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Powder metallurgy
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US2175850A
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Powder metallurgy
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US2200743A
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Method of making a composition of phosphorus and metal
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US2200742A
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Treatment of phosphorus
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US2235835A
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Powder metallurgy
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US2233103A
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Production of nickel powder
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DE698478C
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genuine lead powder
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