1157779

Information

• Patent Grant
• 1157779

• References
• Source

• Patent Number

  1,157,779

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1915
  109 years ago

• CPC

  • H01J13/08 - characterised by the material

• US Classifications

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