| http://www.w3.org/ns/prov#value | - taining compound and method for producing itUS6033790 *Apr 30, 1997Mar 7, 2000Masco CorporationProtective coating having improved acid resistance comprising: nickel layer; layer comprised of zirconium, titanium or zirconium-titanium alloy; sandwich layerUS6106958 *Apr 30, 1997Aug 22, 2000Masco CorporationCoating provides color of brass to articles such as door knobs, handles, trivets, lampes and o
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