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Title:
【発明の名称】連続掘削孔の施工方法および地中掘削用装置
Document Type and Number:
Japanese Patent JP2586919
Kind Code:
B2
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Inventors:
KUBOTA KUNIKAZU
MATSUZAWA HAJIME
Application Number:
JP33244787A
Publication Date:
March 05, 1997
Filing Date:
December 28, 1987
Export Citation:
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Assignee:
SHIMIZU KENSETSU KK
MATSUZAWA KIKO KK
International Classes:
E02D5/18; E02F5/04; E21B7/00; E21B7/20; (IPC1-7): E02D5/18; E02F5/04; E21B7/00; E21B7/20
Domestic Patent References:
JP6124723A
Attorney, Agent or Firm:
Masatake Shiga (1 person outside)



 
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