Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Ryff & Co A G
Original Assignee
Ryff & Co A G
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Publication date
Application filed by Ryff & Co A GfiledCriticalRyff & Co A G
Publication of GB376074ApublicationCriticalpatent/GB376074A/en