{HEAD ~ A further goal} of the invention is {TAIL ~ a device} to store the projectiles so that it is readily accessible for use and to allow each stored projectile to conveniently be charged by an external power supply 
{ HEAD ~ A further goal } of the invention is { TAIL ~ a device } to store the projectiles so that it is readily accessible for use and to allow each stored projectile to conveniently be charged by an external power supply
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