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Process for phosphating metal surfaces
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Patent number 5,268,041
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Issue date Dec 7, 1993
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Metallgesellschaft AG
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Horst Gehmecker
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Phosphating process
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Patent number 5,152,849
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Issue date Oct 6, 1992
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Metallgesellschaft Aktiengesellschaft
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Klaus Bittner
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Process of producing phosphate coatings
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Patent number 4,867,853
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Issue date Sep 19, 1989
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Metallgesellschaft Aktiengesellschaft
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Dieter Hauffe
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Process for phosphating metals
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Patent number 4,637,838
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Issue date Jan 20, 1987
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Metallgesellschaft, A.G.
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Werner Rausch
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Process for phosphating metals
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Patent number 4,559,087
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Issue date Dec 17, 1985
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Parker Chemical Company
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Peter Jorns
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Process for phosphatizing metals
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Patent number 4,419,199
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Issue date Dec 6, 1983
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Occidental Chemical Corporation
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Dieter Hauffe
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Method for the surface treatment of metals
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Patent number 4,169,741
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Issue date Oct 2, 1979
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Oxy Metal Industries Corporation
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Karl Lampatzer
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...