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Coalescence-type filter for oil- and tar-laden liquid wastes
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Governor with controllable pulse sequence with
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Method of and apparatus for regenerating phenolic lyes
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Method of obtaining a catalytic complex for use in hydrocarbons alkylation processes and aparatus therefor
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Method of purifying wasted naphtalene
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Pipe joint for plastic pipes
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Pipe joint for plastic pipes
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Pipe joint for plastic pipes
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Pipe joint for plastic pipes
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Bisphenol a crystallizing process
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Method of and system for crystallizing bisephenol a
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Insulating compound
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