DONALDSON COMPANY, INC. Trademarks
FIRMA-PLUG
Filed: September 12, 1956
COMPOSITION FOR WATERPROOFING MASONRY
Owned by: DONALDSON COMPANY, INC.
Serial Number: 72015572
DURALIFE
Filed: December 3, 1957
AIR FILTERS
Owned by: DONALDSON COMPANY, INC.
Serial Number: 72041697
