| http://www.w3.org/ns/prov#value | - 20090322677LIGHT GUIDE PLATE FOR SYSTEM INPUTTING COORDINATE CONTACTLESSLY, A SYSTEM COMPRISING THE SAME AND A METHOD FOR INPUTTING COORDINATE CONTACTLESSLY USING THE SAME - Disclosed are a light guide plate for a non-contact type coordinate input system, a system including the same, and a non-contact type coordinate input method using the same.
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