Title:
DRILL MACHINE
Document Type and Number:
Japanese Patent JPS58213987
Kind Code:
A
Inventors:
NIWA SHIGEAKI
Application Number:
JP9717482A
Publication Date:
December 13, 1983
Filing Date:
June 07, 1982
Export Citation:
Assignee:
KOMATSU MFG CO LTD
International Classes:
E21B44/00; E21B44/02; (IPC1-7): E21B44/00
Attorney, Agent or Firm:
Kimura Takahisa
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