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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6231249
Kind Code:
Y2
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Application Number:
JP5163379U
Publication Date:
August 11, 1987
Filing Date:
April 18, 1979
Export Citation:
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International Classes:
B21D7/10; B21D5/00; B21D5/04; B21D7/06; B25B7/02; (IPC1-7): B25B7/02; B21D5/00