DIFF Subgroup
F41A 21/20 Barrels or gun tubes characterised by the material (F41A21/02 takes precedence)
Introduced: January 1990
Title
Titles differ between systems:
IPC: Barrels or gun tubes characterised by the material
CPC: Barrels or gun tubes characterised by the material (F41A21/02 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Barrels or gun tubes; Muzzle attachments; Barrel mounting means > Barrels or gun tubes characterised by the material
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) > Barrels or gun tubes characterised by the material (F41A21/02 takes precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.