2219612

Information

• Patent Grant
• 2219612

• References
• Source

• Patent Number

  2,219,612

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • F03C7/00 - Engines of flexible-wall type
  • H01J17/04 - Electrodes Screens
  • H01J17/26 - Means for producing, introducing, or replenishing gas or vapour during operation of the tube
  • H01J31/121 - tubes for oscillography
  • H01J37/32018 - Glow discharge

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 174 - Electricity: conductors and insulators
  • 219 - Electric heating