HOFFMAN SPECIALTY COMPANY Trademarks
THE AIRPORT
Filed: July 11, 1931
VALVES-NAMELY, AIR VALVES FOR STEAM RADIATORS
Owned by: HOFFMAN SPECIALTY COMPANY
Serial Number: 71316841
PANELMATIC
Filed: December 27, 1948
THERMOSTATIC-ELECTRIC CONTROL UNITS FOR HEATING SYSTEMS
Owned by: HOFFMAN SPECIALTY COMPANY
Serial Number: 71571142
