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Image intensifier and image converter tubes. Method of measuring the limiting resolution
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Reprography. Copyrography. Duplicating stencil and base paper for duplicating stencil. Specifications
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Low-power electronic tubes or valves. Methods of test and measurement under rectifying conditions
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Telephones. Methods of measuring electroacoustic parameters
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Information technology. International Standardized profile RA. Relaying the connectionless-mode network service. Part 1. Relay function general overview and subnetwork-independent requirements
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