Title:
REFRIGERATOR FOR BEDROCK OF TUNNEL
Document Type and Number:
Japanese Patent JPS6198898
Kind Code:
A
Inventors:
FUKUDA MAKOTO
Application Number:
JP22017184A
Publication Date:
May 17, 1986
Filing Date:
October 19, 1984
Export Citation:
Assignee:
MITSUI CONSTR
International Classes:
E02D19/14; E21D1/12; E21D9/04; E21D9/06; (IPC1-7): E02D19/14; E21D1/12; E21D9/04; E21D9/06
Attorney, Agent or Firm:
Teruaki Koyama