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Reprography. Micrography. Symbols for projecting

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Fixed and variable vacuum capacitors. General specifications

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Digital Video Broadcasting (DVB). Specifications to information protection from non-authorized access in the cable and terrestrial television broadcast networks. Basic parameters. Technical requirements

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Typewriters. Arrangement of keys and symbols on keyboard

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Printed circuit boards. Physical parameters test methods

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Semiconductor UHF mixer diodes. Measurement method of rectified current

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