Title:
【発明の名称】パーシャルサージングブロック
Document Type and Number:
Japanese Patent JP2881125
Kind Code:
B2
Inventors:
HONGO KANJIRO
Application Number:
JP24052495A
Publication Date:
April 12, 1999
Filing Date:
August 28, 1995
Export Citation:
Assignee:
SANKYO KOGYO KK
International Classes:
E21B31/03; E21B31/00; (IPC1-7): E21B31/00
Attorney, Agent or Firm:
Nakamura