Environmental control apparatus Trademarks Filed in May 5, 1947
DUST-D-FIER
Filed: May 5, 1947
DUST SCRUBBERS UTILIZING A HOLLOW CHAMBER IN WHICH DUST-LADEN GASES ARE CONTACTED WITH A SCRUBBING LIQUID TO REMOVE THE…
Owned by: STEARNS-ROGER MANUFACTURING COMPANY, THE
Serial Number: 71521939