Title:
【発明の名称】口径可変シールド掘進機
Document Type and Number:
Japanese Patent JPH0768849
Kind Code:
B2
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Inventors:
Hironobu Sato
Application Number:
JP28071190A
Publication Date:
July 26, 1995
Filing Date:
October 19, 1990
Export Citation:
Assignee:
Kashima Construction Co., Ltd.
International Classes:
E21D9/06; E21D9/08; E21D9/087; (IPC1-7): E21D9/06
Domestic Patent References:
| JP58207495A | ||||
| JP2210193A |
Attorney, Agent or Firm:
Satoshi Hisakado (1 person outside)
Next Patent: 水平ボーリング機械