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FR2764529A1
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Installation for cleaning a tubular beam and sorting device for removing used cleaning balls from such an installation
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US5518068A
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Installations for cleaning tubes by circulating resilient balls
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US5482111A
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Installations for cleaning tubes by circulating spongy balls, in particular improvements relating to impregnating the balls with water
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US4974662A
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Devices for removing worn balls from cleaning installations for tube bundles
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US4702311A
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Methods and devices for fastening bundles of tubes together
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EP0096607A1
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Devices for separating cleaning bodies in pipe heat exchangers from their carrying fluids
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