Document Type and Number:
Japanese Patent JPS52155485
Kind Code:
U
Application Number:
JP6401876U
Publication Date:
November 25, 1977
Filing Date:
May 21, 1976
Export Citation:
International Classes:
G09F9/00; G02F1/13; G02F1/1333; G04B19/20; (IPC1-7): G09F9/00; G02F1/13; G04B19/20