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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6442307
Kind Code:
U
Application Number:
JP13669687U
Publication Date:
March 14, 1989
Filing Date:
September 07, 1987
Export Citation:
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International Classes:
E01C5/00; E01C15/00; (IPC1-7): E01C15/00; E01C5/00