Title:
METHOD OF EXCAVATING CONSTRUCTION OF TUNNEL
Document Type and Number:
Japanese Patent JPS58110796
Kind Code:
A
Inventors:
OONISHI TAKASHI
KOYAMA TADASHI
KOYAMA TADASHI
Application Number:
JP20752381A
Publication Date:
July 01, 1983
Filing Date:
December 22, 1981
Export Citation:
Assignee:
TEKKEN CONSTR CO
International Classes:
E21D9/00; (IPC1-7): E21D9/00
Attorney, Agent or Firm:
Tsukimura Shigeru
Previous Patent: JPS58110795
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