Projectile propellant apparatus and method
Projectile propulsion and control in a gas-powered gun
Projectile shooting air gun with bladder
Projectile-propelling toy and kit therefor
Propulsion device for spherical objects having an oscillating su
Propulsion device for tennis balls and like spherical objects
Propulsion device for tennis balls and like spherical objects ha
Pulsating toy gun having reciprocating barrels
Pump
Pump action marking pellet gun