RECENTLY PATENTED INVENTIONS. Agricultural Implements. Bicycle-Appliances. Electrical Contrivances. Engineering Improvements. Mechanical Devices. Miscellaneous Inventions. Designs. NEW BOOKS ETC. soap-making according to English practice., scientific american, 1899-01-11
RECENTLY PATENTED INVENTIONS. Agricultural Implements. Bicycle-Appliances. Electrical Contrivances. Engineering Improvements. Mechanical Devices. Miscellaneous Inventions. Designs. NEW BOOKS ETC. soap-making according to English practice., scientific american, 1899-01-11
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