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Application filed by Wojskowa Akad TechfiledCriticalWojskowa Akad Tech
Priority to PL19933977ApriorityCriticalpatent/PL109212B1/pl
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Publication of PL109212B1publicationCriticalpatent/PL109212B1/pl
Sposob jednoczesnej transmisji sygnalow telefonicznych i telegraficznych oraz uklad do jednoczesnej transmisji sygnalow telefonicznych i telegraficznych