Title:
【考案の名称】急勾配の水路より分水するための仮堰ブロツク
Document Type and Number:
Japanese Patent JPS5980523
Kind Code:
U
Inventors:
Shirai Ichio
Application Number:
JP17692282U
Publication Date:
May 31, 1984
Filing Date:
November 20, 1982
Export Citation:
International Classes:
E02B7/20; E02B13/02; (IPC1-7): E02B13/02; E02B7/20