RECENTLY PATENTED INVENTIONS. Railway Appliances. Electrical. Mechanical. Miscellaneous. BUILDING EDITION. AUG1UST (No. 46.) rZiuoineos anb EXPersonai., scientific american, 1889-09-11

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RECENTLY PATENTED INVENTIONS. Railway Appliances. Electrical. Mechanical. Miscellaneous. BUILDING EDITION. AUG1UST (No. 46.) rZiuoineos anb EXPersonai., scientific american, 1889-09-11

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