RECENTLY PATENTED INVENTIONS. Agricultural Implements. Bicycle-Appliances. Mechanical Devices. Ballway-Contrivances. Miscellaneous Inventions. Designs., scientific american, 1899-12-30

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RECENTLY PATENTED INVENTIONS. Agricultural Implements. Bicycle-Appliances. Mechanical Devices. Ballway-Contrivances. Miscellaneous Inventions. Designs., scientific american, 1899-12-30

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