Title:
アンカー穴の先端拡径装置
Document Type and Number:
Japanese Patent JP3182260
Kind Code:
U
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Inventors:
Toshio Shindo
Application Number:
JP2012007938U
Publication Date:
March 14, 2013
Filing Date:
December 29, 2012
Export Citation:
Assignee:
Nice Tech Co., Ltd.
International Classes:
E21B10/32; E21D20/00
Domestic Patent References:
| JP3840145B2 | 2006-11-01 | |||
| JP2004293264A | 2004-10-21 | |||
| JP2000120365A | 2000-04-25 |
Attorney, Agent or Firm:
Yoshikazu Ishii