Environmental control apparatus Trademarks Filed in May 18, 1954
ISOLOK
Filed: May 18, 1954
FAN BLADES MOUNTED BY VIBRATION-AND-SOUND-ABSORBING MEANS IN EXHAUST AND AIR CIRCULATING TYPE FANS
Owned by: REVCOR, INC.
Serial Number: 71666568
ISOLOK
Filed: May 18, 1954
FAN BLADES MOUNTED BY VIBRATION-AND-SOUND-ABSORBING MEANS IN PORTABLE ELECTRIC DEFLECTOR FAN TYPES
Owned by: REVCOR, INC.
Serial Number: 71666569
