11 OIL BURNERS, HOT WATER STORAGE TANKS, WATER HEATERS, WARM AIR FURNACES, UNIT HEATERS, AIR HEATERS, CAST IRON BOILERS, STEEL BOILERS, HUMIDIFIERS, OIL FILTERS, AND EXPANSION TANKS
Trademark Events
Oct 26, 1998
Expired Sec. 9
Sep 12, 1983
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.