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Application filed by Ulmaelektro OyfiledCriticalUlmaelektro Oy
Priority to FI3384/72ApriorityCriticalpatent/FI338472A7/fi
Priority to BE138340Aprioritypatent/BE808006A/xx
Priority to US434424Aprioritypatent/US3901087A/en
Publication of FI338472A7publicationCriticalpatent/FI338472A7/fi