Title:
下水道管への雨水浸入防止施工方法
Document Type and Number:
Japanese Patent JP5229972
Kind Code:
B2
Inventors:
Kiyotoku
Application Number:
JP2009228108A
Publication Date:
July 03, 2013
Filing Date:
September 30, 2009
Export Citation:
Assignee:
Ryukan Kogyo Co., Ltd.
International Classes:
E03F7/00; E03F5/10
Domestic Patent References:
| JP2008045383A | ||||
| JP58199947A |
Attorney, Agent or Firm:
Satoshi Katabe