Document Type and Number:
Japanese Patent JPS6355598
Kind Code:
B2
Inventors:
KAHATA TOICHI
OOI TOSHIO
OOI TOSHIO
Application Number:
JP19221983A
Publication Date:
November 02, 1988
Filing Date:
October 14, 1983
Export Citation:
Assignee:
FURUKAWA KOGYO KK
International Classes:
E21B19/24; B25D16/00; E21B3/00; E21B6/02