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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5231719
Kind Code:
Y2
Application Number:
JP1219372U
Publication Date:
July 19, 1977
Filing Date:
January 31, 1972
Export Citation:
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International Classes:
B21D43/00; B21D45/02; B21J5/02; B21J13/02; B21J13/14; (IPC1-7): B21J13/02; B21D45/02



 
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