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 Alfons Grahl & Cia LtdfiledCriticalAlfons Grahl & Cia Ltd
Priority to BR253073ApriorityCriticalpatent/BR7302530D0/en
Publication of BR7302530D0publicationCriticalpatent/BR7302530D0/en