Title:
フリースライディングドリル
Document Type and Number:
Japanese Patent JP5276842
Kind Code:
B2
Inventors:
Kunihiko Hamai
Koji Morita
Hiroshi Yamada
Youichi Toyota
Tomoyuki Yamanouchi
Koji Morita
Hiroshi Yamada
Youichi Toyota
Tomoyuki Yamanouchi
Application Number:
JP2007341043A
Publication Date:
August 28, 2013
Filing Date:
December 28, 2007
Export Citation:
Assignee:
Obayashi Corporation
Osaka Waterproof Construction Co., Ltd.
Osaka Waterproof Construction Co., Ltd.
International Classes:
E02D17/20; E21B7/04; E21B15/04
Domestic Patent References:
| JP4083017A | ||||
| JP2005105528A | ||||
| JP2004218210A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation
Previous Patent: JPS5276841
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