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3623347
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Information
Patent Grant
3623347
References
Source
Patent Number
3,623,347
Date Filed
Not available
Date Issued
Tuesday, November 30, 1971
52 years ago
CPC
B21D26/021 - Deforming sheet bodies
B21D9/125 - by pushing through a curved die
B21D26/029 - Closing or sealing means
US Classifications
072 - Metal deforming
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