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Inventions and discoveries -- Agriculture and its implements -- Agricultural implements -- Agricultural inventions -- Chemistry, medicines, surgery, dentistry -- Steam and steam engines -- Engineering and transportation -- Electricity -- Hoisting, conveying, and storing -- Hydraulics -- Pneumatics and pneumatic machines -- Art of heating, ventilating, cooking, refrigeration and lighting -- Metallurgy -- Metal working processes and machines; tube making; welding; annealing and tempering; coating and metal founding; metal ware; wire working -- Ordnance, arms, ammunition, and explosives -- Paper and printing, typewriting and the Linotype -- Textiles -- Garments -- Industrial machines -- Wood-working -- Furniture; bottling, preserving, and lamplighting -- Leather -- Minerals; wells -- Horology and instruments of precision -- Music, acoustics, optics, photography, fine arts -- Safes and locks -- Carriages and carrying machines generally -- Ships and ship building -- Illuminating gas -- Pottery, plastics, porcelains, stoneware, glass, rubber, celluloid.
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