Document Type and Number:
Japanese Patent JPS54129982
Kind Code:
U
Application Number:
JP2683678U
Publication Date:
September 10, 1979
Filing Date:
March 01, 1978
Export Citation:
International Classes:
G04G9/00; G02F1/13; G02F1/133; G02F1/1333; G04C17/00; G04G17/02; G09F9/00; (IPC1-7): G09F9/00; G02F1/13; G04C17/00