Title:
土砂輸送管中への粉状改良材供給方法および装置
Document Type and Number:
Japanese Patent JP3978701
Kind Code:
B2
Inventors:
Shoji Umura
Yasuhiro Sasaki
Yasuhiro Sasaki
Application Number:
JP1426299A
Publication Date:
September 19, 2007
Filing Date:
January 22, 1999
Export Citation:
Assignee:
Toyo Construction Co., Ltd.
International Classes:
E02F7/00; E02F7/10
Domestic Patent References:
| JP6065948A | ||||
| JP10292363A | ||||
| JP9228357A |
Attorney, Agent or Firm:
Calyx
Toshio Nakamura
Miyazaki Yoshio
Kaoru Onozuka
Toshio Nakamura
Miyazaki Yoshio
Kaoru Onozuka