Document Type and Number:
Japanese Patent JPS5281036
Kind Code:
U
Application Number:
JP16956675U
Publication Date:
June 16, 1977
Filing Date:
December 15, 1975
Export Citation:
International Classes:
G04B27/00; G06M1/02; G06M1/28; G06M1/30; G06M3/12; (IPC1-7): G06M1/28; G06M1/02