US PATENT SUBCLASS 160 / 2
.~ Nonthermal automatic initiator

Current as of: June, 1999
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160 /   HD   FLEXIBLE OR PORTABLE CLOSURE, PARTITION, OR PANEL

1  DF  AUTOMATIC CONTROL {5}
2.~ Nonthermal automatic initiator {2}
3  DF  .~.~> Force initiated {1}
5  DF  .~.~> Weather and/or light initiated

DEFINITION

Classification: 160/2

(under subclass 1) Devices in which at least one sensing device operates in response to other than a change in temperature.