RECENTLY PATENTED INVENTIONS. Bicycle-Appliances. Engineering Improvements. Mechanical Devices. Railway-Contrivances. Electrical Contrivances. Miscellaneous Inventions. Designs. NEW BOOKS ETC., scientific american, 1899-01-11
RECENTLY PATENTED INVENTIONS. Bicycle-Appliances. Engineering Improvements. Mechanical Devices. Railway-Contrivances. Electrical Contrivances. Miscellaneous Inventions. Designs. NEW BOOKS ETC., scientific american, 1899-01-11
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