Title:
コンクリート製管体
Document Type and Number:
Japanese Patent JP4398847
Kind Code:
B2
Inventors:
Kiyotake Omori
Masayuki Nanjo
Masayuki Nanjo
Application Number:
JP2004308589A
Publication Date:
January 13, 2010
Filing Date:
October 22, 2004
Export Citation:
Assignee:
Nippon Zenith Pipe Co., Ltd.
International Classes:
E03F3/04; E21D9/06; E21D11/04; E21D11/08; F16L9/08
Domestic Patent References:
| JP2004183289A | ||||
| JP11257543A | ||||
| JP2002256792A | ||||
| JP6076492U |
Attorney, Agent or Firm:
Sakuo Yamaguchi