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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5248459
Kind Code:
Y2
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Application Number:
JP6587171U
Publication Date:
November 04, 1977
Filing Date:
July 24, 1971
Export Citation:
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International Classes:
B02C4/08; B02C4/30; B02C18/14; B02C18/18; (IPC1-7): B02C4/08; B02C18/40



 
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