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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56134980
Kind Code:
U
Application Number:
JP3310980U
Publication Date:
October 13, 1981
Filing Date:
March 11, 1980
Export Citation:
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International Classes:
E03F5/04; E02B5/02; (IPC1-7): E03F5/04; E02B5/02