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 filed by А.А. ШалабановfiledCriticalА.А. Шалабанов
Priority to SU49155ApriorityCriticalpatent/SU16657A1/ru
Application grantedgrantedCritical
Publication of SU16657A1publicationCriticalpatent/SU16657A1/ru