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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4865154
Kind Code:
A
Application Number:
JP9945571A
Publication Date:
September 08, 1973
Filing Date:
December 10, 1971
Export Citation:
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International Classes:
B21D1/02; B21B35/14; B21D1/05; B21D3/02; (IPC1-7): B21D1/02