Title:
【発明の名称】シールド掘削機
Document Type and Number:
Japanese Patent JP2662629
Kind Code:
B2
More Like This:
Inventors:
AZUMA YOJI
Application Number:
JP12588589A
Publication Date:
October 15, 1997
Filing Date:
May 19, 1989
Export Citation:
Assignee:
SHIMIZU KENSETSU KK
International Classes:
E21D9/087; E21D9/08; E21D9/12; (IPC1-7): E21D9/08; E21D9/12
Domestic Patent References:
| JP5434524A | ||||
| JP6429599A |
Attorney, Agent or Firm:
Masatake Shiga (2 outside)