US PATENT SUBCLASS 89 / 28.1
.~.~ Electrical and mechanical

Current as of: June, 1999
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89 /   HD   ORDNANCE

27.11  DF  FIRING {5}
28.05  DF  .~ Electric {2}
28.1.~.~ Electrical and mechanical

DEFINITION

Classification: 89/28.1

Electrical and mechanical:

(under subclass 28.05) Subject matter having an alternate mechanical means (normally percussive) to fire a propellant.