Business Entry
Pp
P - Pur

Palmer, Fuller & Co.
People's Gas Light & Coke Co.
Pepper Construction Co.
Perkins & Will
Pettibone Mulliken Corp.
Phelps, Dodge & Palmer
Pinkerton National Detective Agency
Plano Manufacturing Co. (see International Harvester Co. )
Platinum Technology Inc.
Playboy Enterprises Inc.
Playskool Inc.
Premark International Inc. (see Kraft Inc. )
Premark International Inc. (see Illinois Tool Works Inc. )
Pressed Steel Car Co. (see General American Transportation Corp. )
Pullman Inc.
Pure Oil Co.