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SD Chemical Co., Ltd.
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Incheon-si, KR
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Patents Grants
last 30 patents
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Patent Grant
Conversion coating composition based on nitrogen and silicon compou...
Patent number
6,475,299
Issue date
Nov 5, 2002
Samsung Electro-Mechanics Co., Ltd.
Byong Ho Lee
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...