HARTFORD STEAM BOILER Inspection & Insurance COMPANY WHIPPLE'S GEGULATORS GAGE COCKS. BOOTS 'FORCE BLAST BLOWER. AT PARIS &VIENNA. THOUSANDS IN USE BOTH IN THIS COUNTRY & EUROPE. 3 BE RTY ST. A GT. Mill Furnishing Works are the largest In the United States. They make Burr Picks Water Wheels P'ulleys and Gearing specially Steam PumpWorks ESTABLISHED 1882. CHARLES B. HARDICK No. 23 Adams Street BROOKLYN N. Y. IRON PLANERS BEAMS &GIRDERS The attention of Engineers and Architects is callea to our improved Wrought-Iron Beams and Girders (pat mode of manufacturing are entirely
HARTFORD STEAM BOILER Inspection & Insurance COMPANY WHIPPLE'S GEGULATORS GAGE COCKS. BOOTS 'FORCE BLAST BLOWER. AT PARIS &VIENNA. THOUSANDS IN USE BOTH IN THIS COUNTRY & EUROPE. 3 BE RTY ST. A GT. Mill Furnishing Works are the largest In the United States. They make Burr Picks Water Wheels P'ulleys and Gearing specially Steam PumpWorks ESTABLISHED 1882. CHARLES B. HARDICK No. 23 Adams Street BROOKLYN N. Y. IRON PLANERS BEAMS &GIRDERS The attention of Engineers and Architects is callea to our improved Wrought-Iron Beams and Girders (pat mode of manufacturing are entirely avoided. We are pre obtained elsewhere. For descriptive lithograph address BLAKE'S PATENT Crushes all bardand brittle Substances to THE NATIONAL Steel Tube Cleaner. PATEN JITLY28 Adopted and in use by U. S. Navy. For sale by dealers. Send for Circular. THE CHALMERS SPENCE CO. NON-COMBUSTIBLE STEAM BOILER & PIPE COVERING WITH AIR SPACE IMPROVEMENT. Box 773. New York city. Established 1846. in the United States MUNN & CO. in connection with the publication of the onfer with inventors prepare drawings specifications and seignmentsattend to fling applications in the Patent Office (prepared by the inventor or otherattorneys) procure copy rights attend to interferences give written opinions on granted. ngs and length of specifications. Any patent issued since November 27 1867 at which time the Patent Office commenced printing the drawings and specifications may be had by remitting to this office $1. When ordering copies please to remit for the same as above and state name of patentee title of invention and all inventions patented through this Agency with the MUNN ac C U. C Op THE SCIENTIFIC AMERICAN THE MOST POPULAR SCIENTIFIC PAPEB IN THE WORLD. THIRTIETH YEAR. The publishers of the SCIENTIFIC AMERICAN ful than any of its predecessors. To the Mechanic and Manufacturer. cannot be found in any other publication. The SCIENTIFIC AMERICAN is devoted to the interests of Popular Science th
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