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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6222724
Kind Code:
U
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Application Number:
JP11270285U
Publication Date:
February 12, 1987
Filing Date:
July 23, 1985
Export Citation:
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International Classes:
G02B7/28; G11B7/09; (IPC1-7): G11B7/09; G02B7/11; G11B7/09



 
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