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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5728890
Kind Code:
U
More Like This:
Application Number:
JP10582080U
Publication Date:
February 15, 1982
Filing Date:
July 25, 1980
Export Citation:
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International Classes:
B25D9/14; B25D9/26; E21B1/00; E21B1/26; (IPC1-7): B25D9/14; B25D9/26; E21C3/04



 
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