US PATENT SUBCLASS 244 / 152
.~.~ Control devices

Current as of: June, 1999
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244 /   HD   AERONAUTICS

138 R  DF  SAFETY LOWERING DEVICES {4}
142  DF  .~ Parachutes {7}
152.~.~ Control devices

DEFINITION

Classification: 244/152

(under subclass 142) Devices for controlling the speed or direction of descent of parachutes.