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1800 Mechanical Movements, Devices and Appliances books on en elsA fascinating compendium of early twentieth century mechanical devices, this wide ranging work covers a variety of applications. More than 1,800 engravingsranging from simple diagrams to detailed cross sectionsillustrate the workings of each item, from simple hooks and levers to complex machinery used in steam, motive, hydraulic, air, and electric power, navigation, gearing, clocks, mining, construction, and more. Compiled as a ready reference for