2822491

Information

• Patent Grant
• 2822491

• References
• Source

• Patent Number

  2,822,491

• Date Filed

  Not available

• Date Issued

  Tuesday, February 4, 1958
  66 years ago

• CPC

  • H05H7/14 - Vacuum chambers

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 378 - X-ray or gamma ray systems or devices