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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56117723
Kind Code:
U
Application Number:
JP1479580U
Publication Date:
September 09, 1981
Filing Date:
February 08, 1980
Export Citation:
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International Classes:
G09F9/00; G02F1/133; G02F1/1335; (IPC1-7): G02F1/133; G09F9/00