Architect and engineer . TEMPLE BNAI BRITH, LOS ANGELES Robert Company ENGINEERS - CHEMISTS - INSPECTORS Inspections of Building Tlftaterials Tests Analyses Construction Superintendence PACIFIC COAST OFFICES AND LABORATORIES San Francisco Los Angeles Seattle GENERAL OFFICE 251 Kearny St. list South Broadway 621 Lyon Building CHICAGO, ILL. OTHER OFFICES PITTSBURGH LONDON June, 1«)30 The ARCHITECT mid ENGINEER 149 OMICRON The vital new element in Master Build-ers concrete floor hardeners that checkscorrosive disintegration and strengthensconcrete. Write for the story of Omi-cron—told in C


Architect and engineer . TEMPLE BNAI BRITH, LOS ANGELES Robert Company ENGINEERS - CHEMISTS - INSPECTORS Inspections of Building Tlftaterials Tests Analyses Construction Superintendence PACIFIC COAST OFFICES AND LABORATORIES San Francisco Los Angeles Seattle GENERAL OFFICE 251 Kearny St. list South Broadway 621 Lyon Building CHICAGO, ILL. OTHER OFFICES PITTSBURGH LONDON June, 1«)30 The ARCHITECT mid ENGINEER 149 OMICRON The vital new element in Master Build-ers concrete floor hardeners that checkscorrosive disintegration and strengthensconcrete. Write for the story of Omi-cron—told in Checking Disintegration. The MASTER BUILDERS Company Cleveland, OhioFor West Coast Sales Offices see page 150 CONCRETE CRIBBING .j ,.,., » Jtilntaii »• -^ s ^^ip_,_ H^j^ry^i ? h ! -t 1 B^B-- MASSEY CONCRETE PRODUCTS CORP. For full information address General Office; Peoples Gas Building. Chicago acific Coast Office: Pacific Electric Building. Los Angeles A & E3—Gray. The Front Rank on the Firing Lme Foremost in the wartD air heating field is the Front Rankfurnace. A steel plate, boiler-like heater encased in asheet-iron jacket. Vapor pan automatically charges theair with the necessary moisture. Its high eflSdency at low cost of operation accounts for the 230,000 or more in use. Our engineers at your service— Montague Furnace Co., Inc. 376-386 Sixth Street, San Francisco COAL OIL GAS FURNACES HAZARD INSULATION WILL LELy THE?MASSING TEAKS


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