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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5444577
Kind Code:
Y2
Application Number:
JP6103374U
Publication Date:
December 21, 1979
Filing Date:
May 28, 1974
Export Citation:
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International Classes:
G03B23/02; G11B23/08; G11B23/087; (IPC1-7): G11B23/08