DAY AUTOMATION SYSTEMS, INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5198809 Hard wired programmable controller especially for heating ventilating and air conditioning (HVAC systems)ExpiredFeb 22, 91Mar 30, 93[H02J]
4605160 Air blending apparatus for heating, ventilating and air conditioning (HVAC)ExpiredJun 08, 84Aug 12, 86[G05D]
4182367 Pneumatic terminal and gauge assemblyExpiredApr 21, 78Jan 08, 80[G01L]

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