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No.	Application number ▲▼	Gazette No ▲▼	Title ▲▼	Release Date ▲▼	Update Date ▲▼	Information Provider ▲▼
1	P2004-105307	P4312643	METHOD OF REINFORCING BLOCKWORK TUNNEL LINING, AND ITS STRUCTURE	Nov 2, 2007	Mar 9, 2018	Railway Technical Research Institute
2	P2002-379548	P4319834	APPARATUS AND METHOD IMAGING SURFACE OF OBJECT	Nov 16, 2007	Jun 20, 2018	Railway Technical Research Institute
3	P2004-340881	P4610310	DETECTION METHOD OF INTERNAL CRACKING OF STRUCTURE	Nov 2, 2007	Mar 13, 2018	Railway Technical Research Institute