Title:
既設管穿孔設備の切屑排出構造及び既設管穿孔設備の切屑排出方法
Document Type and Number:
Japanese Patent JP3989187
Kind Code:
B2
Inventors:
Yasushi Maenishi
Application Number:
JP2001127941A
Publication Date:
October 10, 2007
Filing Date:
April 25, 2001
Export Citation:
Assignee:
Water Supply Technology Development Corporation
International Classes:
B23B41/08; B23B47/34; F16L55/00
Domestic Patent References:
| JP6249383A | ||||
| JP2002154004A | ||||
| JP60053411U |
Attorney, Agent or Firm:
Shuichiro Kitamura