2394857

Information

• Patent Grant
• 2394857

• References
• Source

• Patent Number

  2,394,857

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1946
  79 years ago

• CPC

  • C07D213/86 - Hydrazides Thio or imino analogues thereof
  • H01J31/14 - Magic-eye or analogous tuning indicators
  • H03J3/14 - Visual indication

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 315 - Electric lamp and discharge devices: systems
  • 334 - Tuners