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.)
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Application filedfiledCritical
Priority to HUCI001537priorityCriticalpatent/HU170683B/hu
Priority to AT16676Aprioritypatent/AT339919B/de
Priority to DD19080176Aprioritypatent/DD123192A1/xx
Priority to ES444490Aprioritypatent/ES444490A1/es
Priority to CH45476Aprioritypatent/CH620223A5/de
Priority to JP326676Aprioritypatent/JPS5922718B2/ja
Publication of HU170683BpublicationCriticalpatent/HU170683B/hu