Windows Including Auxiliary and Storm Windows for Residential, Commercial, Industrial and Institutional Buildings

WINDOWS INCLUDING AUXILIARY AND STORM WINDOWS FOR RESIDENTIAL, COMMERCIAL, INDUSTRIAL AND INSTITUTIONAL BUILDINGS

CHEMICAL COMPOSITIONS FOR CONTROLLING EVAPORATION AND HEAT LOSS IN OUTDOOR SWIMMING POOL WATER

Waterproof Cabinets for Electrical Apparatus

APPARATUS FOR AIR CONDITIONING-REFRIGERATION PURPOSES COMPRISING MECHANICAL WATER CHILLERS, COMPRESSING AND CONDENSING UNITS, COOLING TOWERS AND COILS, EVAPORATIVE CONDENSERS AND CAPACITY CONTROLS FOR CONTROLLING THE CAPACITY OF AIR CONDITIONING-REFRIGERATION APPARATUS, SUCH UNITS BEING REQUIRED COMPONENT PARTS OF REFRIGERATION OR AIR CONDITIONING SYSTEMS, BUILT ON THE JOB