Document Type and Number:
Japanese Patent JPS496089
Kind Code:
Y1
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Application Number:
JP10966869U
Publication Date:
February 13, 1974
Filing Date:
November 20, 1969
Export Citation:
International Classes:
G03B31/00; G03B31/04; H02P5/50; H02P5/52; H04R1/02; (IPC1-7): G03B31/00; H02P5/50; H04R1/02
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