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 DD17694374ApriorityCriticalpatent/DD110363A1/xx
Publication of DD110363A1publicationCriticalpatent/DD110363A1/xx
Priority to DE19742460151prioritypatent/DE2460151A1/de
Priority to FR7502919Aprioritypatent/FR2263526B3/fr
Priority to GB845675Aprioritypatent/GB1483858A/en
Priority to SU752109822Aprioritypatent/SU953612A1/ru