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Tongeren N V Bureau Van
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Tongeren N V Bureau Van
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Application filed by Tongeren N V Bureau VanfiledCriticalTongeren N V Bureau Van
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Publication of FR1114357ApublicationCriticalpatent/FR1114357A/en
Process and apparatus for the conversion of gaseous or vapor substances and simultaneously or in place of liquid substances, optionally in combination with finely divided solid substances