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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS49130819
Kind Code:
U
Application Number:
JP2834673U
Publication Date:
November 11, 1974
Filing Date:
March 07, 1973
Export Citation:
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International Classes:
G03B31/00; G11B20/02; (IPC1-7): G03B31/00; G11B5/033



 
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