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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS579865
Kind Code:
Y2
Application Number:
JP1153475U
Publication Date:
February 25, 1982
Filing Date:
January 24, 1975
Export Citation:
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International Classes:
G03B21/48; G03B21/11; G03B23/00; G06F17/30; (IPC1-7): G06F15/40; G03B21/11