3770601

Information

• Patent Grant
• 3770601

• References
• Source

• Patent Number

  3,770,601

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  51 years ago

• CPC

  • H01J9/08 - Manufacture of heaters for indirectly-heated cathodes

• US Classifications

  • 219 - Electric heating
  • 204 - Chemistry: electrical and wave energy