DECEMBER I 1900. 347 The Current Supplement. RECENTLY PATENTED INVENTIONS. Electrical Apparatus. Engineering Improvements. Mechanical Devices. Railway Appliances. Miscellaneous Inventions. Designs. NEW BOOKS ETC., scientific american, 1900-12-01
DECEMBER I 1900. 347 The Current Supplement. RECENTLY PATENTED INVENTIONS. Electrical Apparatus. Engineering Improvements. Mechanical Devices. Railway Appliances. Miscellaneous Inventions. Designs. NEW BOOKS ETC., scientific american, 1900-12-01
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