Filed: September 21, 1999 Ventilation systems, namely, an air conditioner which supplies fresh outdoor air into a building and conditions the outdoor… Owned by:SEMCO LLC Serial Number:75803899
Filed: February 18, 2004 antimicrobial coating sold as an integral part of ventilating system components, namely, ventilating fans, ventilating louvers… Owned by:SEMCO LLC Serial Number:78369801