US4701267B1
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1996-03-12
Method for removing leukocytes
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1989-01-12
Metal salts of lower dialkylphosphorodithioic acids
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1988-12-31
Process for extracting metals from water solutions
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1991-02-26
Method of removing heavy metals from phosphoric acid containing solutions
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1988-09-30
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1988-10-06
Apparatus for the galvanic recovery of metals from diluted solutions
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1989-05-10
Method of making metal castings
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1988-09-01
Method of filtering molten metal
EP0219032A3
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1988-06-22
Method for producing metal castings
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1989-04-26
Process for removing metal complexes from waste solutions
GB8803318D0
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1988-03-09
Process for recovery of metals
GB2196991B
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1990-03-28
Method for removal of patina
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1985-03-27
Method of filtering molten metal
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1985-03-26
Method of removal of heavy metals from solutions of their salts
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1988-05-25
Method of removing metal contaminants from solutions
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1984-09-12
Removing metals from aqueous solutions
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1985-01-31
Method of recovering heavy metals
SU1146330A1
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1985-03-23
Method of extracting non-ferrous metals from manganese-containing media
CS261068B3
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1989-01-12
Method of quicksilver removal from waste solutions
IL75363A0
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1985-09-29
Process for the removal of metal ions from solutions
IL71554A0
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1984-07-31
Process for the removal of metal ions from solutions
PL251260A1
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1986-07-01
Metal machining method
SU1139457A1
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1985-02-15
Method of extracting heavy metals from aqueous nitrate solutions
BG40366A1
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1986-12-15
Method for soldering of metals
BG37151A1
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1985-04-15
Method for azotizing workpieces made of electrical steel