. Brooklyn and Queens, New York, copartnership and corporation directory. Are You as Careful aBuyer as These Concerns? General Electric Co. Standard Oil Co. Bethlehem Steel Co. Hammermill Paper Co. E. I. DuPont de Nemours & Co., Inc. These concerns and many others of like standing use Columbia and S. & B. Instruments. Concerns of this character are not ac-customed to purchase anything unlessthey know, beyond doubt, that it is thevery best in its line. Is it reasonable to suppose that youcan find better instruments for promotingplant efficiency than the keen buyers ofthese large concerns have b

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. Brooklyn and Queens, New York, copartnership and corporation directory. Are You as Careful aBuyer as These Concerns? General Electric Co. Standard Oil Co. Bethlehem Steel Co. Hammermill Paper Co. E. I. DuPont de Nemours & Co., Inc. These concerns and many others of like standing use Columbia and S. & B. Instruments. Concerns of this character are not ac-customed to purchase anything unlessthey know, beyond doubt, that it is thevery best in its line. Is it reasonable to suppose that youcan find better instruments for promotingplant efficiency than the keen buyers ofthese large concerns have been able tofind? For more than sixty years men whoknow have considered Columbia and S. &B. Instruments the standard in Recording; ThermometersIndicating; ThermometersDial ThermometersGauge TestersRecording- GaugesDifferentia] Draft GaugesMercury Column Vacuum GaugesCalorimeters, ltarometersTachometers. Counters, Ktc. Write for Catalog. Makers of Instruments for the promotion Cof efficiency in the Power Plant andManufacturing Departments.

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