Inventor
WANG HEE IL
KR3 patents
Patents
3 patentsUS7133745B2Nov 7, 2006
Method for compensating rotational position error of robot cleaner
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US7969714B2Jun 28, 2011
Apparatus for controlling monitor and method thereof
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US6676477B2Jan 13, 2004
Toy having detachable central processing unit
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