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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5867359
Kind Code:
U
Application Number:
JP16035681U
Publication Date:
May 07, 1983
Filing Date:
October 29, 1981
Export Citation:
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International Classes:
G09B9/042; E01F9/00; G09B9/04; (IPC1-7): G09B9/04; E01F9/00