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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6216158
Kind Code:
Y2
Application Number:
JP3533581U
Publication Date:
April 23, 1987
Filing Date:
March 16, 1981
Export Citation:
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International Classes:
B63H5/04; B63B35/73; B63H5/02; B63H16/20; (IPC1-7): B63H16/20; B63H5/02