DIFF Subgroup
F41A 21/04 Barrel liners
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Barrels or gun tubes; Muzzle attachments; Barrel mounting means > Composite barrels, i.e. barrels having multiple layers, e.g. of different materials > Barrel liners
CPC:
Barrels; Gun tubes; Muzzle attachments; Barrel mounting means (F41A25/00 takes precedence; barrel attachments for firing grenades or riot-control ammunition from smallarms F41C27/06) > Composite barrels, i.e. barrels having multiple layers, e.g. of different materials > Barrel liners
No child classifications to compare. This is a leaf node in both IPC and CPC.