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Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Publication date
Application grantedgrantedCritical
Publication of CA558696ApublicationCriticalpatent/CA558696A/en
Improvements in or relating to methods of fractionating gas mixtures in a rectifying column, in which methods the gas mixture to be fractionated is supplied to the column at a point situated between the ends thereof