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 За витель В. Г. Вохм нинfiledCriticalЗа витель В. Г. Вохм нин
Priority to SU802967796ApriorityCriticalpatent/SU968286A1/ru
Application grantedgrantedCritical
Publication of SU968286A1publicationCriticalpatent/SU968286A1/ru
Saett att lufta mellanoerat medelst en i oerats trumhinna applicerbar ventilationstub, ventilationstub foer utfoerande av saettet jaemte anvaendning av en dylik ventilationstub.