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Application filed by Dae Sung Lee, Choi Soo Heung, Ho Keun ShinfiledCriticalDae Sung Lee
Priority claimed from EP93103123Aexternal-prioritypatent/EP0618405B1/en
Application grantedgrantedCritical
Publication of ATE154844T1publicationCriticalpatent/ATE154844T1/en