Title:
【発明の名称】たて坑のシール装置
Document Type and Number:
Japanese Patent JP2765203
Kind Code:
B2
Inventors:
OOTSUKA RYUSABURO
FUJII SHIGEO
FUJII SHIGEO
Application Number:
JP19314390A
Publication Date:
June 11, 1998
Filing Date:
July 23, 1990
Export Citation:
Assignee:
ISHIKAWAJIMA HARIMA JUKOGYO KK
International Classes:
E21D9/06; (IPC1-7): E21D9/06
Attorney, Agent or Firm:
Nobuo Kinutani (1 outside)