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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS634720
Kind Code:
Y2
Application Number:
JP4760082U
Publication Date:
February 06, 1988
Filing Date:
March 31, 1982
Export Citation:
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International Classes:
B63B15/00; B63H9/04; B63H9/06; (IPC1-7): B63B15/00; B63H9/04