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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS57147244
Kind Code:
U
Application Number:
JP3396881U
Publication Date:
September 16, 1982
Filing Date:
March 11, 1981
Export Citation:
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International Classes:
B01D19/00; C10G31/00; C10G31/10; (IPC1-7): C10G31/00; B01D19/00