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Backwash system for filter thickeners
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Filtration thickening method and apparatus
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Gravitational separator having membrane baffles therein
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Expanded natural grainws (cereals) for lightweight building materials
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Roll-up corrugated steel roofing sheet material
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Roll-up boat
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Roll-up boat
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Machine for deforming sheet metal from the flat state into a tubular form
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Corrugated roll-up structure
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Continuously extensible and roll-up reinforced structure
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Continuously extensible and roll-up structure
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Continuously extensible and roll-up structure
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Cutter head for hollow stem auger
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Driving tool
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Machine for deforming sheet metal from the flat state into a tubular form
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Extensible-retractile structure
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Cutter head for hollow stem auger
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Continuously extensible and roll-up structure
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Continuously extensible and roll-up reinforced structure
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Corrugated roll-up structure
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