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Scientific American, Vol. 101, No. 24 (December 1909) (1909)

leaf 1

An illustration from Scientific American, Vol. 101, No. 24 (December 1909), 1909, leaf 1
KAHN SYSTEM I KAHN SYSTEM I KAHN SYSTEM 1 KAHN SYSTEM … Manufacturers Building, Grand Rapids, Mich. Robinson & Cotnpeau, Architects. crete. Catalogs free. Kahn System of Reinforced Concrete used throughout Hy-Rib Catalog free. A Fireproof Factory Is Your Best Insurance No amount of insurance can repay you for lost business, inability to fill orders, and…

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