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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS47434
Kind Code:
U
Application Number:
JP210371U
Publication Date:
August 02, 1972
Filing Date:
January 23, 1971
Export Citation:
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International Classes:
B21D31/00; B21B1/16; (IPC1-7): B21B1/16; B21D31/00