Document Type and Number:
Japanese Patent JPS4315237
Kind Code:
Y1
Application Number:
JP7592165U
Publication Date:
June 26, 1968
Filing Date:
September 14, 1965
Export Citation:
International Classes:
G11B33/12; H04R1/02; H04R1/08; (IPC1-7): H04R1/08; H04R1/02