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Class Information
Number: 409/306
Name: Gear cutting, milling, or planing > Planing > Means for cutting groove > Arcuate groove > For rifling
Description: Apparatus consisting of means for cutting a spiral groove in the inner surface of the barrel of a small arms or ordnance device.


Patents under this class:

Patent Number Title Of Patent Date Issued
4559803 Tool for making hollow articles Dec. 24, 1985
4411569 Apparatus for broaching rifling Oct. 25, 1983
 
 
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