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Reprography. Micrography. Master microfiches. Types. Rules for placing microimages and making changes
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Low-power electronic tubes. Mutual-conductance test methods
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EMC standard for telecommunications networks. Part 1. Wire-line telecommunications networks using telephone wires
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Telecontrol equipment and systems. Part 1. General considerations. Section 4. Basic aspects of telecontrol data transmission and organization of standards IEC 870-5 and IEC 870-6
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