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Dong-Teak Chung
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Kyeonggi-do, KR
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Patents Grants
last 30 patents
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Patent Grant
Method for making ceramic spheres
Patent number
7,356,927
Issue date
Apr 15, 2008
Dong-Teak Chung
B24 - GRINDING POLISHING
Patents Applications
last 30 patents
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Patent Application
Method for making ceramic spheres
Publication number
20050248050
Publication date
Nov 10, 2005
Dong-Teak Chung
B24 - GRINDING POLISHING