Title:
【発明の名称】アップワードシールドマシンの掘削部
Document Type and Number:
Japanese Patent JPH0631534
Kind Code:
B2
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Inventors:
MURAKAMI FUMIAKI
OOTOMO AKIRA
OOTOMO AKIRA
Application Number:
JP21140788A
Publication Date:
April 27, 1994
Filing Date:
August 25, 1988
Export Citation:
Assignee:
TODENTSU KK
International Classes:
E21D3/00; (IPC1-7): E21D3/00
Attorney, Agent or Firm:
Yasushi Kobayashi (1 person outside)
Next Patent: 損益分岐点の早見盤