TREA

having magnetic control means having both magnetic and electro-static control means

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Industry

  • CPC
  • H01J21/18
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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J21/00Vacuum tubes

Current Industry

H01J21/18having magnetic control means having both magnetic and electro-static control means
Industries