3717784

Information

• Patent Grant
• 3717784

• References
• Source

• Patent Number

  3,717,784

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1973
  51 years ago

• CPC

  • H01K1/54 - Means for absorbing or absorbing gas, or for preventing or removing efflorescence

• US Classifications

  • 313 - Electric lamp and discharge devices