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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5441707
Kind Code:
Y2
Application Number:
JP3996675U
Publication Date:
December 05, 1979
Filing Date:
March 25, 1975
Export Citation:
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International Classes:
G03B23/02; G11B23/08; G11B23/087; (IPC1-7): G11B23/08



 
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