Document Type and Number:
Japanese Patent JPS5529472
Kind Code:
U
Application Number:
JP11270178U
Publication Date:
February 26, 1980
Filing Date:
August 16, 1978
Export Citation:
International Classes:
H04R17/10; G10K9/22; G10K11/02; (IPC1-7): G10K9/22; G10K11/02; H04R17/10