| http://www.w3.org/ns/prov#value | - The invention relates to a method for purifying aqueous residues from exhausted metallizing baths, such as baths customarily used in the production of printed circuits for forming predetermined circuitry of copper or other metallic conductors on appropriate substrates, and to the use of this method for working up exhausted baths for the production of printed circuits by currentless deposition of c
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