Environmental control apparatus Trademarks Filed in December 3, 1957
ADVAN GUARD
Filed: December 3, 1957
FLUORESCENT BALLASTS WITH AUTOMATIC RESET PROTECTORS
Owned by: ADVANCE TRANSFORMER CO.
Serial Number: 72041683
DURALIFE
Filed: December 3, 1957
AIR FILTERS
Owned by: DONALDSON COMPANY, INC.
Serial Number: 72041697
