2475646

Information

• Patent Grant
• 2475646

• References
• Source

• Patent Number

  2,475,646

• Date Filed

  Not available

• Date Issued

  Tuesday, July 12, 1949
  75 years ago

• CPC

  • H01J25/54 - having only one cavity or other resonator
  • C08F20/52 - Amides or imides

• US Classifications

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