1428424

Information

• Patent Grant
• 1428424

• References
• Source

• Patent Number

  1,428,424

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1922
  102 years ago

• CPC

  • H01K1/16 - Electric connection thereto
  • H01K7/04 - for indicating
  • Y10T29/482 - Tufting

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 029 - Metal working