US PATENT SUBCLASS 126 / 578
.~.~.~ Electronic sensor

Current as of: June, 1999
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126 /   HD   STOVES AND FURNACES

569  DF  SOLAR HEAT COLLECTOR {18}
572  DF  .~ With control means energized in response to actuator stimulated by condition sensor {3}
573  DF  .~.~ Including sun position tracking sensor {7}
578.~.~.~ Electronic sensor

DEFINITION

Classification: 126/578

Electronic sensor:

(under subclass 573) Apparatus wherein the sensing means includes a device that determines or measures change in the electrical property of a material.