1176661

Information

• Patent Grant
• 1176661

• References
• Source

• Patent Number

  1,176,661

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1916
  108 years ago

• CPC

  • H01J13/08 - characterised by the material

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 220 - Receptacles