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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5636719
Kind Code:
Y2
Application Number:
JP6616878U
Publication Date:
August 28, 1981
Filing Date:
May 17, 1978
Export Citation:
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International Classes:
B63H20/00; B63H25/42; (IPC1-7): B63H25/42; B63H5/13