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Image intensifier and image converter tubes. Method of checking the picture quality viewing area
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Sockets and plugs, single-pole. Basic parameters and dimensions. General technical requirements
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Image intensifier and image converter tubes. Method of measuring the contrast of the image
Document status: Active
Information processing systems. 7-Bit and 8-bit codes represented on punched cards
Document status: Active
Reprography. Copyrography. Base paper for diazotype paper. Specifications
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