Document Type and Number:
Japanese Patent JPS53101544
Kind Code:
U
More Like This:
Application Number:
JP603177U
Publication Date:
August 16, 1978
Filing Date:
January 20, 1977
Export Citation:
International Classes:
G03B31/00; H04R1/00; H04R1/10; (IPC1-7): G03B31/00; H04R1/00
Domestic Patent References:
JPS4836719B1 | 1973-11-06 | |||
JPS357018Y1 | ||||
JPS3610316Y1 |