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Heating furnace
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Threaded joint of parts accessible from one side
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Device for setting a sensor in well
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Device for assembling acoustic converters
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Arrangement for stripping the surface of articles
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Device for orientating ultrasonic transducer
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Device for ultrasonic checking of article concave spheric surfaces
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Device for cooling electric apparatus
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Apparatus for making holes in earth
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Screw transmission
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Vehicle braking system
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Void-forming device
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Method of manufacturing the case of a fluid-tight accumulator
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