1630233

Information

• Patent Grant
• 1630233

• References
• Source

• Patent Number

  1,630,233

• Date Filed

  Not available

• Date Issued

  Tuesday, May 24, 1927
  97 years ago

• CPC

  • G02B21/06 - Means for illuminating specimens
  • H01J13/00 - Discharge tubes with liquid-pool cathodes
  • H01J2893/0095 - Tubes with exclusively liquid main electrodes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices