Title:
発進立坑における推進管の横移動台車
Document Type and Number:
Japanese Patent JP4827759
Kind Code:
B2
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Inventors:
Hiromasa Kazumasa
Mitsuyoshi Sakakibara
Junjiro Takahashi
Mitsuyoshi Sakakibara
Junjiro Takahashi
Application Number:
JP2007026015A
Publication Date:
November 30, 2011
Filing Date:
February 05, 2007
Export Citation:
Assignee:
Okumura Gumi Co., Ltd.
International Classes:
E21D11/40; E21D9/06; E21F13/00
Domestic Patent References:
| JP4061199U | ||||
| JP63259288A | ||||
| JP2002004779A | ||||
| JP11294100A |
Attorney, Agent or Firm:
Osamu Hatori
Shuichi Maeda
Shuichi Maeda