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Class Information
Number: 42/1.071
Name: Firearms > With adjustable head space > By reaming
Description: Subject matter includes enlarging the headspace or the space between the bolt face and specified point on the shoulder of the chamber with a metal working tool.

Patents under this class:

Patent Number Title Of Patent Date Issued
5443542 Revolver barrel with improved barrel throat and method of manufacture Aug. 22, 1995

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