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Title:
APPARATUS FOR HOLDING PILLAR PIPE OF UNDERWATER BORING APPARATUS
Document Type and Number:
Japanese Patent JPS5876688
Kind Code:
A
Inventors:
YOSHIMURA NOBUO
Application Number:
JP17343881A
Publication Date:
May 09, 1983
Filing Date:
October 28, 1981
Export Citation:
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Assignee:
YOSHIMURA KOGYOSHO KK
International Classes:
E21B7/136; E21B7/12; (IPC1-7): E21B7/12



 
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