Definition
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Concept Hierarchy
Current Concept
Narrower Concepts 11
Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, colour
8540_11
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Tubes; cathode-ray television picture tubes, including video monitor cathode-ray tubes, monochrome
8540_12
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Tubes; television camera tubes, image converters and intensifiers, other photo-cathode tubes
8540_20
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Tubes; data/graphic display tubes, monochrome; data/graphic display tubes, colour, with a phosphor dot screen pitch smaller than 0.4mm
8540_40
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Tubes; cathode ray, n.e.c. in heading no. 8540
8540_60
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Tubes; microwave, magnetrons, excluding grid-controlled tubes
8540_71
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Tubes; microwave (for example klystrons, travelling wave tubes, carlinotrons), excluding magnetrons and grid-controlled tubes
8540_79
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Valves and tubes; receiver or amplifier
8540_81
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Valves and tubes; n.e.c. in heading no. 8540
8540_89
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Tubes; parts of cathode-ray tubes
8540_91
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Valves and tubes; parts of the valves and tubes of heading no. 8540, excluding parts of cathode-ray tubes
8540_99
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Notes
History Notes
Concept Information
IRI
https://glossary.bonsai.uno/HS-2017/8540
Notation
8540
Status
Accepted