Title:
トンネル拡張用掘削装置
Document Type and Number:
Japanese Patent JP4986819
Kind Code:
B2
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Inventors:
Yoshifumi Uehara
Toshimitsu Aso
Fujinaga Yuzaburo
Taiji Hanaoka
Yuichi Nakamura
Akiyuki Onishi
Toshimitsu Aso
Fujinaga Yuzaburo
Taiji Hanaoka
Yuichi Nakamura
Akiyuki Onishi
Application Number:
JP2007297382A
Publication Date:
July 25, 2012
Filing Date:
November 16, 2007
Export Citation:
Assignee:
Shimizu Construction Co., Ltd.
Hitachi Zosen Corporation
Hitachi Zosen Corporation
International Classes:
E21D9/10
Domestic Patent References:
| JP10196275A | ||||
| JP8114083A | ||||
| JP9256782A |
Attorney, Agent or Firm:
Yoshihiro Morimoto
Toshiji Sasahara
Yohei Harada
Toshiji Sasahara
Yohei Harada