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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5715489
Kind Code:
U
Application Number:
JP9154080U
Publication Date:
January 26, 1982
Filing Date:
June 30, 1980
Export Citation:
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International Classes:
G11B21/12; G11B19/00; G11B21/02; G11B25/04; (IPC1-7): G11B25/04; G11B21/02