Document Type and Number:
Japanese Patent JPS5280644
Kind Code:
U
More Like This:
Application Number:
JP16831075U
Publication Date:
June 16, 1977
Filing Date:
December 12, 1975
Export Citation:
International Classes:
G03B9/62; G03B9/08; H04Q9/00; H04Q9/02; (IPC1-7): G03B9/08; H04Q9/02