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3646799
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Information
Patent Grant
3646799
References
Source
Patent Number
3,646,799
Date Filed
Not available
Date Issued
Tuesday, March 7, 1972
52 years ago
CPC
B22D11/057 - Manufacturing or calibrating the moulds
B21D9/12 - by pushing over a curved mandrel by pushing through a curved die
US Classifications
072 - Metal deforming
164 - Metal founding
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