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 Optimar Fabrik Fuer Optik U Fe, Peter Reinhold DrfiledCriticalOptimar Fabrik Fuer Optik U Fe
Application grantedgrantedCritical
Publication of AT177657BpublicationCriticalpatent/AT177657B/de