Title:
【発明の名称】深坑内の異物回収装置
Document Type and Number:
Japanese Patent JPS5944468
Kind Code:
B2
Inventors:
OGAWA JUNJI
Application Number:
JP1555276A
Publication Date:
October 30, 1984
Filing Date:
February 16, 1976
Export Citation:
Assignee:
OGAWA JUNJI
International Classes:
E03F9/00; (IPC1-7): E03F9/00
Attorney, Agent or Firm:
Naoyoshi Sato
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