Document Type and Number:
Japanese Patent JPS5696795
Kind Code:
U
Application Number:
JP18078779U
Publication Date:
July 31, 1981
Filing Date:
December 25, 1979
Export Citation:
International Classes:
H04R9/02; F16F15/02; F16F15/04; H04R9/06; (IPC1-7): H04R9/02; F16F15/04; H04R9/06