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Application filed by Hoover Ball & Bearing CofiledCriticalHoover Ball & Bearing Co
Priority to FI1750/74ApriorityCriticalpatent/FI53427C/fi
Publication of FI175074A7publicationCriticalpatent/FI175074A7/fi
Application grantedgrantedCritical
Publication of FI53427BpublicationCriticalpatent/FI53427B/fi
Publication of FI53427CpublicationCriticalpatent/FI53427C/fi