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Priority to SU1603441ApriorityCriticalpatent/SU416604A1/ru
Priority claimed from SU1603441Aexternal-prioritypatent/SU416604A1/ru
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Publication of SU416604A2publicationCriticalpatent/SU416604A2/ru
Publication of SU416604A1publicationCriticalpatent/SU416604A1/ru