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Method of withdrawal of a fragment of a drill from a hole of a work-piece
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Self-sealing device of piston - cylinder pair
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Method of working friction surfaces
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Shell-and-tube heat exchanger
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Process for manufacturing shell-and-tube heat exchanger
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Method for producing porous coatings
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Tube expanding tool
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Method of entering working medium into tubes of apparatus using energy of expandable working medium
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Device for obtaining perforated articles
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Tool for flanging holes
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Apparatus for the destruction of rock by applying thrust forces
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Seal
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Method of producing hollow projection on sheet work
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Method of testing pipes by applying internal pressure
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Device for sealing tubes
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Method of securing beading tool deriving energy from ice
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Tube-beading tool deriving energy from ice
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Device for manufacturing hollow components with taps
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Appliance for securing pipes in pipe boards
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