Document Type and Number:
Japanese Patent JPS6316555
Kind Code:
B2
Inventors:
TOKIMUNE YOSHIO
Application Number:
JP18803482A
Publication Date:
April 09, 1988
Filing Date:
October 25, 1982
Export Citation:
Assignee:
SANWA KIKO KK
International Classes:
E21B19/08; E21B3/035; E21B19/084; E21B19/086
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