US PATENT SUBCLASS 340 / 546
.~.~.~.~ Portable

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
541  DF  .~.~ Intrusion detection {8}
545.1  DF  .~.~.~ Door or window movement {6}
546.~.~.~.~ Portable

DEFINITION

Classification: 340/546

Portable:

(under subclass 545.2) Subject matter where the alarm means is not permanently attached to the door or window, is self-contained in a single housing, and is of such size and weight to be transportable by a person.