Document Type and Number:
Japanese Patent JPS53158355
Kind Code:
U
Application Number:
JP6318777U
Publication Date:
December 12, 1978
Filing Date:
May 17, 1977
Export Citation:
International Classes:
G09B9/042; A63B22/06; A63B23/04; G09B9/05; G09B9/058; G09B19/00; (IPC1-7): G09B19/00; A63B23/04