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Friction welding method
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Laminated imitation leather
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Electron-beam-processing machine having means for deflecting impurities from the path of the electron beam
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Method and device for inspecting and/or controlling thermally produced mechanical joints
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Method and device for smoking acord of smokable material
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Method and apparatus for electron beam treatment of surface layers
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Device for ventilating or air-conditioning a room or cabin
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Electron beam generating system for high beam potentials
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A laminated imitation leather and method for its production
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A method of processing workpieces by means of energy-carrying rays
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Device for working material by means at a corpuscular beam
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Welding process using beamed radiant energy
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Method and apparatus for the thermal working of material by radiant energy
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A process and apparatus for the continuous casting of molten metal
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Improvements in or relating to the casting of molten metal
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Method of increasing the rate of heat transfer between hot surfaces and a liquid in contact therewith
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Improvements in or relating to the production of substances of high molecular weight
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Improvements in or relating to the treatment of thermoplastic synthetic materials
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