Document Type and Number:
Japanese Patent JPS5513825
Kind Code:
Y2
Application Number:
JP11726974U
Publication Date:
March 28, 1980
Filing Date:
September 28, 1974
Export Citation:
International Classes:
G03B23/02; G11B23/08; G11B23/087; (IPC1-7): G11B23/08
Previous Patent: JPS5513824
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