Document Type and Number:
Japanese Patent JPS4886951
Kind Code:
U
Application Number:
JP859872U
Publication Date:
October 20, 1973
Filing Date:
January 19, 1972
Export Citation:
International Classes:
G09B19/04; A63H33/12; G09B19/00; (IPC1-7): G09B19/04; A63H33/12