CPC Subgroup
F41A 33/04 Acoustical simulation of gun fire, e.g. by pyrotechnic means
Full Title
Adaptations for training (adaptations of barrels for recoil reinforcement F41A21/26); Gun simulators (teaching or practice apparatus for gun-aiming or gun-laying F41G3/26 ) > Acoustical simulation of gun fire, e.g. by pyrotechnic means