Environmental control apparatus Trademarks Filed in April 4, 1979
DUCT BOOSTER
Filed: April 4, 1979
IN-DUCT FAN
Owned by: TJERNLUND PRODUCTS, INC.
Serial Number: 73210232
E-Z INSERT
Filed: April 4, 1979
WOOD-BURNING AND COAL-BURNING STOVES
Owned by: AUSTIN-BERRYHILL FABRICATORS, INC.
Serial Number: 73210301
