DIFF Subgroup
F41A 21/02 Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
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
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
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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