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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5139998
Kind Code:
Y2
Application Number:
JP11801971U
Publication Date:
September 30, 1976
Filing Date:
December 16, 1971
Export Citation:
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International Classes:
B63B59/02; E02B3/26; (IPC1-7): E02B3/22; B63B59/02