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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6321520
Kind Code:
Y2
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Application Number:
JP20323983U
Publication Date:
June 14, 1988
Filing Date:
December 31, 1983
Export Citation:
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International Classes:
B63B29/14; B63B13/00; B63B13/02; (IPC1-7): B63B29/14; B63B13/02