RECENTLY PATENTED INVENTIONS. Engineering. Railway Appliances. Mechanical. Agricultural. Miscellaneous. all newsdealer'. by logarithms., scientific american, 1890-06-11

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RECENTLY PATENTED INVENTIONS. Engineering. Railway Appliances. Mechanical. Agricultural. Miscellaneous. all newsdealer'. by logarithms., scientific american, 1890-06-11

Penta Springs LLP / Alamy Stock Photo

Image ID: 2ABX656