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 Karl FischerfiledCriticalKarl Fischer
Priority to AT850868ApriorityCriticalpatent/AT283534B/de
Priority to SE537469Aprioritypatent/SE342382B/xx
Priority to FI110469Aprioritypatent/FI50032C/fi
Priority to FR6912288Aprioritypatent/FR2006572A1/fr
Priority to NO162769Aprioritypatent/NO131405C/no
Priority to DE19696931620prioritypatent/DE6931620U/de
Application grantedgrantedCritical
Publication of AT283534BpublicationCriticalpatent/AT283534B/de