Document Type and Number:
Japanese Patent JPS5650553
Kind Code:
Y2
Application Number:
JP13258575U
Publication Date:
November 26, 1981
Filing Date:
September 27, 1975
Export Citation:
International Classes:
G10K9/13; G10K9/12; H04R7/22; H04R11/14; H04R13/00; (IPC1-7): G10K9/13; H04R7/22; H04R11/14