Title:
【考案の名称】コンクリート製ボックスカルバート
Document Type and Number:
Japanese Patent JP3089322
Kind Code:
U
Inventors:
Naoto Nakatani
Yoichiro Kosaka
Yoichiro Kosaka
Application Number:
JP2002002127U
Publication Date:
October 25, 2002
Filing Date:
April 16, 2002
Export Citation:
Assignee:
Nippon Concrete Co., Ltd.
International Classes:
F24F1/00; (IPC1-7): E03F3/04; E01B1/00
Attorney, Agent or Firm:
Tsuyoshi Sato