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Microphones. Methods of measuring electroacoustic parameters
Document status: Withdrawn
Cathode-ray tubes for reception. Supply and driving voltages standards
Document status: Active
Information technology. Computing information systems. Computer-based equipment for school. Quality characteristics. Technical requirements
Document status: Active
Image intensifier and image converter tubes. Method of checking useful diameter of the photocathode
Document status: Active
Data transmissions system signal conversion modulus for telegraph channels. Types and basic parameters
Document status: Active
Reprography. Micrography. Master microfiches. Types. Rules for placing microimages and making changes
Document status: Active