anted to Alexander Graham Bell, March received at publication office as early as Thursday morn- ing to appear in next issue. 7th, 1876, No. 174,465, and January 30th, patent, and will stand any pressure of steam, oils, or acids Discs used in these valves are manufactured under our 1s 1877, No.… … ing outfits of these machines, bid LQeugs ARCHI- THE CURTIS lower and save more money than by any other means for doing their RETURN igraph. work. Sold on trial. [lustrated Catalogue FREE. STEAM TRAP. monthly. $2.50a year. Single copies, 25 For returning steam condensed un- cents. Forty large…
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