CPC Subgroup
F41A 3/60 Breech mechanisms for guns having two or more barrels (F41A3/58 takes precedence; for revolving-cannon guns F41F1/10)
Full Title
Breech mechanisms, e.g. locks > Breech mechanisms for guns having two or more barrels (F41A3/58 takes precedence; for revolving-cannon guns F41F1/10)