Document Type and Number:
Japanese Patent JPS5470348
Kind Code:
U
Application Number:
JP14433877U
Publication Date:
May 18, 1979
Filing Date:
October 27, 1977
Export Citation:
International Classes:
H04R25/04; H03G3/20; H03G3/30; H04R25/00; (IPC1-7): H03G3/30; H04R25/00