Document Type and Number:
Japanese Patent JPS63162371
Kind Code:
U
Application Number:
JP5488287U
Publication Date:
October 24, 1988
Filing Date:
April 11, 1987
Export Citation:
International Classes:
G09B19/02; A63H33/04; A63H33/10; G09B1/20; (IPC1-7): G09B1/20; A63H33/04; G09B19/02