Document Type and Number:
Japanese Patent JPS54117102
Kind Code:
U
Application Number:
JP17429477U
Publication Date:
August 16, 1979
Filing Date:
December 23, 1977
Export Citation:
International Classes:
H04R11/08; H04R11/12; (IPC1-7): H04R11/12
Domestic Patent References:
| JPS537202A | 1978-01-23 |