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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5517354
Kind Code:
Y2
Application Number:
JP9947174U
Publication Date:
April 22, 1980
Filing Date:
August 19, 1974
Export Citation:
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International Classes:
G03B23/02; G11B23/08; G11B23/087; (IPC1-7): G11B23/08



 
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