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2725918
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Information
Patent Grant
2725918
References
Source
Patent Number
2,725,918
Date Filed
Not available
Date Issued
Tuesday, December 6, 1955
68 years ago
CPC
B21D39/16 - with torque limiting devices
Y10T408/23 - including means to cause Tool to progressively vibrate toward work
US Classifications
091 - Motors: expansible chamber type
072 - Metal deforming
173 - Tool driving or impacting
408 - Cutting by use of rotating axially moving tool
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