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Application filedfiledCritical
Priority to CS808272ApriorityCriticalpatent/CS167575B1/cs
Priority to DE19732358729prioritypatent/DE2358729A1/de
Priority to DD17488873Aprioritypatent/DD108564A1/xx
Priority to GB5488873Aprioritypatent/GB1430615A/en
Priority to NL7316296Aprioritypatent/NL7316296A/xx
Priority to JP13393273Aprioritypatent/JPS4998899A/ja
Priority to FR7342274Aprioritypatent/FR2207951B3/fr
Publication of CS167575B1publicationCriticalpatent/CS167575B1/cs