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Application filed by Directia De Telecomunicatii AfiledCriticalDirectia De Telecomunicatii A
Priority to RO5959069ApriorityCriticalpatent/RO62822A2/en
Publication of RO62822A2publicationCriticalpatent/RO62822A2/en
RO5959069A1969-04-021969-04-02
METHOD FOR INDIVIDUALLY COUNTING CONVERSATIONS OF TELEPHONE SUBSCRIBERS OF A TYPE 7D AUTOMATIC TELEPHONE CENTRAL
RO62822A2
(en)