Environmental control apparatus Trademarks Filed in July 16, 1969
HAZEN
Filed: July 16, 1969
RECUPERATIVE AIR HEATERS AND DIRECT FIRED AIR HEATERS, AND PARTS THEREOF
Owned by: Air Preheater Company, Inc., The
Serial Number: 72332677
SUNPAK
Filed: July 16, 1969
HEATERS-NAMELY, GAS INFRARED SPACE HEATERS
Owned by: INFRARED DYNAMICS
Serial Number: 72332717
