Document Type and Number:
Japanese Patent JPS5527891
Kind Code:
Y2
Application Number:
JP14030077U
Publication Date:
July 03, 1980
Filing Date:
October 19, 1977
Export Citation:
International Classes:
G09B3/04; B42D1/00; B42D15/00; G09B19/06; G09B19/08; (IPC1-7): G09B3/04; B42D1/00; G09B19/08