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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5253428
Kind Code:
Y2
Application Number:
JP13876772U
Publication Date:
December 03, 1977
Filing Date:
December 01, 1972
Export Citation:
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International Classes:
E03C1/266; B01D21/00; B02C18/00; E03C1/26; (IPC1-7): B02C18/40



 
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