Title:
土砂掘削吸引装置
Document Type and Number:
Japanese Patent JP3996088
Kind Code:
B2
Inventors:
Hiromichi Maekawa
St. Sano
Mountain Saki Ryoji
Eiiti Wada
St. Sano
Mountain Saki Ryoji
Eiiti Wada
Application Number:
JP2003123936A
Publication Date:
October 24, 2007
Filing Date:
April 28, 2003
Export Citation:
Assignee:
Ihi Co., Ltd.
Kanematsu Engineering Co., Ltd.
Kanematsu Engineering Co., Ltd.
International Classes:
E02F3/88; E21B7/18
Domestic Patent References:
| JP5156884A | ||||
| JP9302712A | ||||
| JP5171884A | ||||
| JP3062188U | ||||
| JP2002121988A | ||||
| JP1304292A | ||||
| JP2248535A |
Attorney, Agent or Firm:
Nobuo Kinutani