Title:
【発明の名称】地下構造物の建設方法
Document Type and Number:
Japanese Patent JP2673902
Kind Code:
B2
Inventors:
Takashi Kanai
Application Number:
JP4780089A
Publication Date:
November 05, 1997
Filing Date:
February 28, 1989
Export Citation:
Assignee:
Hitachi Construction Machinery Co., Ltd.
International Classes:
E02D29/045; E04H7/00; E21D13/00; E21D13/02; (IPC1-7): E21D13/02; E02D29/045; E04H7/00; E21D13/00
Domestic Patent References:
| JP6443699A | ||||
| JP2157399A |
Attorney, Agent or Firm:
Teruo Tomita