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3449812
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Information
Patent Grant
3449812
References
Source
Patent Number
3,449,812
Date Filed
Not available
Date Issued
Tuesday, June 17, 1969
55 years ago
CPC
B21D39/16 - with torque limiting devices
B21D39/06 - of tubes in openings
Y10T29/49375 - including conduit expansion or inflation
Y10T29/49776 - Pressure, force, or weight determining
Y10T29/4994 - Radially expanding internal tube
Y10T29/53722 - with radially acting tool inside annular work
US Classifications
029 - Metal working
072 - Metal deforming
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