
Electromechanical All-or-nothing Telecom Relays - Part 55: Blank Detail Specification; Electromechanical All-or-nothing Telecom Relays Of Assessed Quality; 4 Generation, Two Change Over Contacts, 11 Mm X 7,5 Mm (max.) Base
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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