SHAMROCK HEATING AND AIR CONDITIONING Trademarks
DUCT-VISION
Filed: February 19, 1997
optical and electronic apparatus for inspecting the interior of heating and air conditioning ductwork
Owned by: SHAMROCK HEATING AND AIR CONDITIONING
Serial Number: 75243988
THE INSPECTOR HEAT EXCHANGER VIDEO INSPECTION CAMERA
Filed: May 11, 1998
Video camera used in cleaning heating and air conditioning ductwork
Owned by: SHAMROCK HEATING AND AIR CONDITIONING
Serial Number: 75483201
