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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5480501
Kind Code:
U
Application Number:
JP15472077U
Publication Date:
June 07, 1979
Filing Date:
November 17, 1977
Export Citation:
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International Classes:
E21D3/00; B66F17/00; (IPC1-7): E21D3/00; B66F17/00