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Publication date
Priority claimed from FI930216Uexternal-prioritypatent/FI1010U1/en
Application filed by Pertti KeinonenfiledCriticalPertti Keinonen
Priority to FI930439UpriorityCriticalpatent/FI1138U1/en
Publication of FIU930439U0publicationCriticalpatent/FIU930439U0/en
Application grantedgrantedCritical
Publication of FI1138U1publicationCriticalpatent/FI1138U1/en