today...
1425
in operation and
75
more under construction a record of installations that is incomparable
just as all Petrochem-lsoflow Furnaces are more economically desirable by any comparison. PETROCHEM-ISΟFLOW U N L I M I T E D
IN
SI. Z E . . .
FURNACES
C A P A C I T Y .
. . D U T Y
PETRO-CHEM DEVELOPMENT C O . , I N C . · 1 2 2 EAST 4 2 n d St., N e w Y o r k 1 7 , Ν . Υ. REPRESENTATIVES: Rawscn & Co., Houston · Wm. Η Mason Co., Tutsa · Lester Oberhottz,Los Angeles • Faville-LevaMy, Chicago · D.D.Foster, Pittsburgh . Turbex, Philadelphia · Flagg', Brackett & Durgin, Boston • G. M. Wallace & Co., Denver & Salt Lake City International Licensees and Representatives: SETEA-S.A. Cornercial, Industrial, y de Estudios Yecnicos, Buenos Aires, Argentine * Industrial Proveedora, Caracas, Veneiuela · Société Anonyme Huertey, Paris, France • Société Anonyme Belge, Liege, Belgium * Huertey Italians S.P.A., Milan, Italy · Birwelco Ltd., Birmingham, England
For further information, circle number 104 A on Readers' service Card, page 139 A
104 A
INDUSTRIAL AND ENGINEERING CHEMISTRY
