US PATENT SUBCLASS 89 / 11
.~ Axially moving breech block

Current as of: June, 1999
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89 /   HD   ORDNANCE

9  DF  MACHINE GUNS {3}
11.~ Axially moving breech block

DEFINITION

Classification: 89/11

Machine guns in which the movement of the breech-block in opening and closing the breech is in line with the axis or bore of the gun.