Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoover Ball & Bearing CofiledCriticalHoover Ball & Bearing Co
Priority to NO742053ApriorityCriticalpatent/NO143270C/en
Publication of NO742053LpublicationCriticalpatent/NO742053L/no
Publication of NO143270BpublicationCriticalpatent/NO143270B/en
Publication of NO143270CpublicationCriticalpatent/NO143270C/en