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Gear for protection against voltage variations
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Hydraulic and pneumatic spring
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High-frequency power amplifier
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Device for monitoring parameters of periodic signal
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Analog entity tester
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Dc voltage indicator
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Device for automatic search of radio communication channels
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Apparatus for tolerance check of amplitude-frequency characteristic of fourterminal network
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Indicator of constant voltage
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Device for checking communication channels
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Parameter testing device
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Device for measuring signal protection from interference
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Radio-telegraph operatorъs simulator
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Device for estimating of signals
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