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3777544
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Information
Patent Grant
3777544
References
Source
Patent Number
3,777,544
Date Filed
Not available
Date Issued
Tuesday, December 11, 1973
50 years ago
CPC
B21C25/04 - Mandrels
B21C25/00 - Profiling tools for metal extruding
B21C33/006 - Consecutive billets
US Classifications
072 - Metal deforming
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