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Cameras for 35-mm film. Basic dimensions of threaded connections of lenses with cameras
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Modular order for the development of mechanical structures for electronic equipment practices. Part 2. Sectional specification. Interface coordination dimensions for the 25 mm equipment practice. Section 1. Detail specification. Dimensions for cabinets and racks
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Low-power vacuum valves. Methods for measurement of input resistance
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Control computing system and automating telephone stations peripheral equipment joints. Joint main functional-temporal characteristics requirements
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