Air Conditioning onu s^ms Pittsburgh Lectrodryer Corporation Foot of 32nd Street Pittsburgh, Pa.

Air System Equipment Barber-Colman Company ENGINEERED AIR DISTRIBUTION OUTLETS Rockford, Illinois AUTOMATIC TEMPERATURE CONTROL SYSTEMS Quality-built units with directional diffusing fins provide quiet, uniform, draftless air distribution.

Controls and Instruments Henry Valve Company MELROSE PARK, ILLINOIS (A Chicago Suburb) HENRY PRODUCTS FOR REFRIGERATION, AIR CONDITIONING.

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Air System Equipment Registers and Grilles The Auer Register Co. 6600 Clement Avenue, Cleveland 5, Ohio Manufacturers of Registers and Grilles for Gravity and Air Conditioning Systems; Metal Grilles for Radiator Enclosure, Ventilation, Concealment AIR CONDITIONING REGISTERS AND GRILLES Auer has a complete line for warm air or air conditioning, a wide choice of styles for every purpose.

Heating Systems cast iron Frank Prox Company, Inc.

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Resin Grade sbestos Effective, low-cost thickening agent and thixotrope for epoxy resin systems Imparts excellent viscosity control to resin systems (coatings, adhesives, sealants, caulks, mastics) KMX 02079 ... a highly purified fiber product that is an effective, low-cost thickening agent and thixotrope for epoxy resin systems.

UNION CARBIDE CORPORATION METALS DIVISION P.O.BOX 579 NIAGARA FALLS, N.Y. 14302 TEL: 716-278-3376 THICKENING AGENTS FOR NITROCELLULOSE AND ALKYD LACQUERS The information on the following pages is a translation of work done in the laboratories of our European Distributor.

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( PLAINTIFF'S EXHIBIT UC-267 (J9 d P.