Title:
MANUFACTURE OF CIRCULAR WATER CHANNEL MADE OF CONCRETE WITH SIDE-SURFACE OPENING SECTION
Document Type and Number:
Japanese Patent JPS63221015
Kind Code:
A
Inventors:
TOYODA YOSHIHIRO
NUNOKAWA KOJI
NUNOKAWA KOJI
Application Number:
JP5399287A
Publication Date:
September 14, 1988
Filing Date:
March 11, 1987
Export Citation:
Assignee:
NIPPON CONCRETE IND CO LTD
International Classes:
E03F3/04; B28B21/86; B28B21/90; (IPC1-7): B28B21/86; B28B21/90; E03F3/04
Attorney, Agent or Firm:
Ichiki Masanobu