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Document Type and Number:
Japanese Patent JPH02144164
Kind Code:
U
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JP2957827Description: A method for manufacturing an optical disc and an optical disc having identification information, and a method for permanently marking an optical disc.
Application Number:
JP5044189U
Publication Date:
December 06, 1990
Filing Date:
April 28, 1989
Export Citation:
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International Classes:
G11B19/04; G11B19/10; (IPC1-7): G11B19/10



 
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