US PATENT SUBCLASS 102 / 429
.~.~.~ Spring biased

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

401  DF  MINES {5}
424  DF  .~ Igniting means {4}
428  DF  .~.~ Pressure actuated {1}
429.~.~.~ Spring biased

DEFINITION

Classification: 102/429

Spring biased:

(under subclass 428) Subject matter wherein the pressure causes a spring which is held under compression to be released and actuate an ignitor.