US PATENT SUBCLASS 102 / 508
.~.~ With cavity

Current as of: June, 1999
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102 /   HD   AMMUNITION AND EXPLOSIVES

501  DF  PROJECTILES {11}
507  DF  .~ Dumdum or mushrooming {1}
508.~.~ With cavity {1}
509  DF  .~.~.~> Hollow {1}

DEFINITION

Classification: 102/508

With cavity:

(under subclass 507) Subject matter including a hole in the projectile to facilitate lateral expansion upon impact.