Document Type and Number:
Japanese Patent JPS5622400
Kind Code:
Y2
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Application Number:
JP4687175U
Publication Date:
May 26, 1981
Filing Date:
April 07, 1975
Export Citation:
International Classes:
H04R9/02; H04R1/02; H04R9/06; (IPC1-7): H04R9/02; H04R1/02; H04R9/06