Chicago : Engineering and Contracting Pub. Co. · leaf 211
-S- … EngxCorifg Nnpen I Hit > ii and common Inlior Mil Hon labor I >lvcr unit hclpcrH Machinist 1220.87L86.11. 86.84. 86.00 Fig. 3.—Sketch Showing Design of Connec-tion to 36-in. Main. to break away brick arches and to operate thedivers air pump and the cutting machine. Catalogs Worth Having.…
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