exact
DUSK-DAWN SENSOR
exact
DUSK-DAWN SENSOR
Trademarks matching 'dusk-dawn sensor'
Summary of page content
2005-03-21
US
-
9
Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
electronic sensor that specifically measures the delta change in light at sunrise and sunset
602
ABANDONED-FAILURE TO RESPOND OR LATE RESPONSE
2006-05-24
2020-05-31
technology systems smart system light soft advanced cube oxygen dome power active temperature time oc digital eco nite tech pak