US PATENT SUBCLASS 89 / 1.6
.~ Timing devices

Current as of: June, 1999
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89 /   HD   ORDNANCE

1.51  DF  BOMB, FLARE AND SIGNAL DROPPING {10}
1.6.~ Timing devices

DEFINITION

Classification: 89/1.6

Timing device:

(under subclass 1.51) Subject matter where the ordnance to be dropped contains a clock so that it will detonate at a desired moment.