Document Type and Number:
Japanese Patent JPS6315430
Kind Code:
B2
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Inventors:
MATSUEDA MAKOTO
TOKORO TAKEHIKO
ONO SHINKICHI
TAKEDO TSUTOMU
TOKORO TAKEHIKO
ONO SHINKICHI
TAKEDO TSUTOMU
Application Number:
JP20017682A
Publication Date:
April 05, 1988
Filing Date:
November 15, 1982
Export Citation:
Assignee:
NIPPON SOGO BOSUI KK
NIPPON KOKI KK
NIPPON KOKI KK
International Classes:
E21B4/02; E21B4/14