Document Type and Number:
Japanese Patent JPS5620760
Kind Code:
B1
Application Number:
JP10213170A
Publication Date:
May 15, 1981
Filing Date:
November 19, 1970
Export Citation:
International Classes:
H04R9/12; H04R9/16; H04R11/08; H04R11/12; H04R17/04; H04R17/08; (IPC1-7): H04R17/08; H04R9/16; H04R11/12