Document Type and Number:
Japanese Patent JPS4937515
Kind Code:
A
Application Number:
JP7936872A
Publication Date:
April 08, 1974
Filing Date:
August 08, 1972
Export Citation:
International Classes:
H04H20/12; H04H40/18; H04H60/31; H04H60/32; H04N17/00; H04H1/00; (IPC1-7): H04N7/02