Illinois Society of Architects · Chicago · leaf 229
WHEN YOU WANT THE BEST RESULTS SPECIFY THE Van 4uken System of Vacuum Heating HUNDREDS OF PLANTS IN SUCCESSFUL OPERATIONSEND FOR LIST, BOOKLET AND TESTIMONIALS CONSOLIDATED ENGINEERING CO- 42 W. JACKSON BOUL., CHICAGO American Engineering Specialty Company AGENTS FOR WEBSTER SYSTEM OF HEATING… … 228 with the historj of Rome, though it has become a commercial proposition within thelast thirty years, and to-day in the United States there are millions of dollars investedin factories and machinery for the production of apparatus for this purpose. Whenwhat may be called the modern hot water…
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