Document Type and Number:
Japanese Patent JPS56111598
Kind Code:
U
Application Number:
JP866980U
Publication Date:
August 28, 1981
Filing Date:
January 28, 1980
Export Citation:
International Classes:
H04R11/08; H01F5/02; H04R11/12; (IPC1-7): H04R11/12; H01F5/02