Title:
【発明の名称】コンクリート管の製造方法とその装置
Document Type and Number:
Japanese Patent JP2849628
Kind Code:
B2
Inventors:
YABUCHI SADAO
OOIGAWA MITSUMASA
OOIGAWA MITSUMASA
Application Number:
JP11569889A
Publication Date:
January 20, 1999
Filing Date:
May 09, 1989
Export Citation:
Assignee:
JIOTOTSUPU KK
International Classes:
E02D5/30; B28B17/00; B28B21/30; B28B21/34; B28B21/80; (IPC1-7): B28B21/30; B28B17/00; B28B21/34; E02D5/30
Domestic Patent References:
| JP62152809A | ||||
| JP50101565U | ||||
| JP472639B1 | ||||
| JP3719574Y1 |
Attorney, Agent or Firm:
Keisei Nishikawa (1 person outside)