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Filing date
Publication date
Application filed by EumigfiledCriticalEumig
Priority to AT516058ApriorityCriticalpatent/AT226054B/de
Priority to CH7029959Aprioritypatent/CH369965A/de
Priority to BE576368Aprioritypatent/BE576368A/fr
Priority to GB800259Aprioritypatent/GB898618A/en
Application grantedgrantedCritical
Publication of AT226054BpublicationCriticalpatent/AT226054B/de