US PATENT SUBCLASS 340 / 562
.~.~.~.~ Capacitance

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
541  DF  .~.~ Intrusion detection {8}
561  DF  .~.~.~ Disturbance of electric field {1}
562.~.~.~.~ Capacitance {2}
563  DF  .~.~.~.~.~> With bridge
564  DF  .~.~.~.~.~> Fence

DEFINITION

Classification: 340/562

Capacitance:

(under subclass 561) Subject matter wherein the electric field disturbance is detected by a change of capacitance in the sensing system.