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bn:00456605n
Noun Named Entity
Categories: Vacuum tube displays, Television technology
EN
7JP4
EN
The 7JP4 is an early black and white or monochrome cathode ray tube. Wikipedia
Definitions
Relations
Sources
EN
The 7JP4 is an early black and white or monochrome cathode ray tube. Wikipedia
Monochrome cathode ray tube Wikidata
IS A
cathode-ray tube
COMPLIES WITH
RETMA tube designation
USE
radar display
black and white television
Wikipedia
EN
7JP4
Wikidata
EN
7JP4

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