Document Type and Number:
Japanese Patent JPS5069967
Kind Code:
U
Application Number:
JP12576373U
Publication Date:
June 20, 1975
Filing Date:
October 29, 1973
Export Citation:
International Classes:
G09F13/00; G04B21/10; G04C23/46; (IPC1-7): G04C23/46; G09F13/00