A $250 PRIZE FOR A WET-GRAIN CONVEYING SYSTEM. GROUND PLAN OF THE BUILDINGS. RECENTLY PATENTED INVENTIONS. Electrical Devices. Of Interest to Farmers. Of General Interest. Hardware. Heating and Lighting. Household Utilities. Machines and Mechanical Devices. Pertaining to Recreation. Pertaining to Vehicles., scientific american, -1909-02-11
A $250 PRIZE FOR A WET-GRAIN CONVEYING SYSTEM. GROUND PLAN OF THE BUILDINGS. RECENTLY PATENTED INVENTIONS. Electrical Devices. Of Interest to Farmers. Of General Interest. Hardware. Heating and Lighting. Household Utilities. Machines and Mechanical Devices. Pertaining to Recreation. Pertaining to Vehicles., scientific american, -1909-02-11
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