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
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Application filedfiledCritical
Priority to PL15469272ApriorityCriticalpatent/PL75927B1/pl
Priority to GB1735573Aprioritypatent/GB1431867A/en
Priority to FR7313069Aprioritypatent/FR2329169A7/fr
Priority to SE7305125Aprioritypatent/SE395067B/xx
Priority to NL7305101Aprioritypatent/NL7305101A/xx
Priority to DE19732318591prioritypatent/DE2318591C3/de
Priority to US05/458,128prioritypatent/US4004215A/en
Publication of PL75927B1publicationCriticalpatent/PL75927B1/pl