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Non-chromate conversion coatings
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Patent number 4,225,350
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Issue date Sep 30, 1980
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Dart Industries Inc.
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John L. H. Allan
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Non-chromate conversion coatings
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Patent number 4,225,351
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Issue date Sep 30, 1980
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Dart Industries Inc.
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Richard F. Zuendt
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Non-chromate conversion coatings
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Patent number 4,222,779
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Issue date Sep 16, 1980
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Dart Industries Inc.
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Ajay M. Bengali
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Dissolution of metals
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Patent number 4,141,850
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Issue date Feb 27, 1979
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Dart Industries Inc.
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Philip D. Readio
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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