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bn:00000165n
Noun Concept
EN
A battery
EN
The battery used to heat the filaments of a vacuum tube WordNet 3.0
Definitions
Relations
Sources
EN
The battery used to heat the filaments of a vacuum tube WordNet 3.0 & Open English WordNet
A battery used to heat the filament or cathode heaters of electron tubes. Wiktionary
Battery to heat the filament of electron tube. Wiktionary (translation)
IS A
battery
WordNet 3.0 & Open English WordNet
EN
A battery
Wiktionary
EN
A battery

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