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1720722
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Information
Patent Grant
1720722
References
Source
Patent Number
1,720,722
Date Filed
Not available
Date Issued
Tuesday, July 16, 1929
95 years ago
CPC
B21C23/01 - starting from material of particular form or shape
B21C33/006 - Consecutive billets
Y10S29/047 - Extruding with other step
Y10T428/12285 - Single taper [e.g., ingot, etc.]
US Classifications
072 - Metal deforming
029 - Metal working
428 - Stock material or miscellaneous articles
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