ANEMOSTAT
AIR DIFFUSERS FOR VENTILATING APPARATUS; COMBINED AIR INLET AND AIR EXHAUST UNITS FOR VENTILATING APPARATUS; AIR OUTLET UNITS FOR VENTILATING APPARATUS HAVING LIGHT FIXTURES COMBINED THEREWITH; HIGH VELOCITY AIR DISTRIBUTING UNITS, VALVES CONTROLLING FLOW OF AIR TO SUCH UNITS AND LINKAGES FOR CONTROLLING SUCH VALVES; AIR FLOW VOLUME AND DIRECTIONAL CONTROL ELEMENTS AS DAMPERS, VANES, BAFFLES, AND DEFLECTORS; AIR DUCTS AND FITTINGS THEREFOR; MOUNTINGS FOR ELEMENTS AND ACCESSORIES OF AIR OUTLET...
Cancelled · May 24, 1954 · 71666901 ·