2106855

Information

• Patent Grant
• 2106855

• References
• Source

• Patent Number

  2,106,855

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1938
  87 years ago

• CPC

  • H01J17/063 - Indirectly heated cathodes

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 252 - Compositions
  • 264 - Plastic and nonmetallic article shaping or treating: processes