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Patent Searching and Data


Title:
【発明の名称】岩盤用溝孔掘削方法
Document Type and Number:
Japanese Patent JPS5953999
Kind Code:
B2
Inventors:
NAKAGAKI SHUNICHI
MIWA SATORU
Application Number:
JP4783278A
Publication Date:
December 27, 1984
Filing Date:
April 24, 1978
Export Citation:
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Assignee:
OOBAYASHIGUMI KK
MITSUI MIIKE SEISAKUSHO KK
International Classes:
E02D17/13; E02F5/02; E21B6/02; E21B7/02; E21B15/00; E21B19/08; (IPC1-7): E21B6/00; E02D17/13
Attorney, Agent or Firm:
Minoru Abe