Title:
中掘りロッドの伸縮装置
Document Type and Number:
Japanese Patent JP4015083
Kind Code:
B2
Inventors:
Wakiya Yasushi
Tatsumi Yuichi
Satoshi Mimura
Kazuo Fukuda
Kazuo Yamazaki
Tatsumi Yuichi
Satoshi Mimura
Kazuo Fukuda
Kazuo Yamazaki
Application Number:
JP2003295383A
Publication Date:
November 28, 2007
Filing Date:
August 19, 2003
Export Citation:
Assignee:
jfe Steel Corporation
Japan Pile Co., Ltd.
Nozaki Construction Co., Ltd.
Sanwa Equipment Co., Ltd.
Japan Pile Co., Ltd.
Nozaki Construction Co., Ltd.
Sanwa Equipment Co., Ltd.
International Classes:
E21B3/02; E02D7/00
Domestic Patent References:
| JP11247192A | ||||
| JP58099387U | ||||
| JP56125488U | ||||
| JP7150566A | ||||
| JP1137092A | ||||
| JP2000337071A |
Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma